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How to Write Topic Sentences | 4 Steps, Examples & Purpose

Published on July 21, 2022 by Shona McCombes . Revised on June 5, 2023.

How to Write Topic Sentences

Every paragraph in your paper needs a topic sentence . The topic sentence expresses what the paragraph is about. It should include two key things:

  • The  topic of the paragraph
  • The central point of the paragraph.

After the topic sentence, you expand on the point zwith evidence and examples.

To build a well-structured argument, you can also use your topic sentences to transition smoothly between paragraphs and show the connections between your points.

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Table of contents

Writing strong topic sentences, topic sentences as transitions between paragraphs, topic sentences that introduce more than one paragraph, where does the topic sentence go, frequently asked questions about topic sentences.

Topic sentences aren’t the first or the last thing you write—you’ll develop them throughout the writing process. To make sure every topic sentence and paragraph serves your argument, follow these steps.

Step 1: Write a thesis statement

The first step to developing your topic sentences is to make sure you have a strong thesis statement . The thesis statement sums up the purpose and argument of the whole paper.

Thesis statement example

Food is an increasingly urgent environmental issue, and to reduce humans’ impact on the planet, it is necessary to change global patterns of food production and consumption.

Step 2: Make an essay outline and draft topic sentences

Next, you should make an outline of your essay’s structure , planning what you want to say in each paragraph and what evidence you’ll use.

At this stage, you can draft a topic sentence that sums up the main point you want to make in each paragraph. The topic sentences should be more specific than the thesis statement, but always clearly related to it.

Topic sentence example

Research has consistently shown that the meat industry has a significant environmental impact .

Step 3: Expand with evidence

The rest of the paragraph should flow logically from the topic sentence, expanding on the point with evidence, examples, or argumentation. This helps keep your paragraphs focused: everything you write should relate to the central idea expressed in the topic sentence.

In our example, you might mention specific research studies and statistics that support your point about the overall impact of the meat industry.

Step 4: Refine your topic sentences

Topic sentences usually start out as simple statements. But it’s important to revise them as you write, making sure they match the content of each paragraph.

A good topic sentence is specific enough to give a clear sense of what to expect from the paragraph, but general enough that it doesn’t give everything away. You can think of it like a signpost: it should tell the reader which direction your argument is going in.

To make your writing stronger and ensure the connections between your paragraphs are clear and logical, you can also use topic sentences to create smooth transitions. To improve sentence flow even more, you can also utilize the paraphrase tool .

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main idea topic sentence and thesis statement

As you write each topic sentence, ask yourself: how does this point relate to what you wrote in the preceding paragraph? It’s often helpful to use transition words in your topic sentences to show the connections between your ideas.

Emphasize and expand

If the paragraph goes into more detail or gives another example to make the same point, the topic sentence can use words that imply emphasis or similarity (for example, furthermore , indeed , in fact , also ).

Indeed , cattle farming alone is responsible for a large proportion of greenhouse gas emissions.

Summarize and anticipate

If the paragraph turns to a different aspect of the same subject, the topic sentence can briefly sum up the previous paragraph and anticipate the new information that will appear in this one.

While beef clearly has the most dramatic footprint, other animal products also have serious impacts in terms of emissions, water and land use.

Compare and contrast

If the paragraph makes a comparison or introduces contrasting information, the topic sentence can use words that highlight difference or conflict (for example, in contrast , however , yet , on the other hand ).

However , the environmental costs of dietary choices are not always clear-cut; in some cases, small-scale livestock farming is more sustainable than plant-based food production.

You can also imply contrast or complicate your argument by formulating the topic sentence as a question.

Is veganism the only solution, or are there more sustainable ways of producing meat and dairy?

Sometimes you can use a topic sentence to introduce several paragraphs at once.

All of the examples above address the environmental impact of meat-eating versus veganism. Together, they make up one coherent part of a larger argument, so the first paragraph could use a topic sentence to introduce the whole section.

In countries with high levels of meat consumption, a move towards plant-based diets is the most obvious route to making food more sustainable. Research has consistently shown that the meat industry has significant environmental impacts.

The topic sentence usually goes at the very start of a paragraph, but sometimes it can come later to indicate a change of direction in the paragraph’s argument.

Given this evidence of the meat industry’s impact on the planet, veganism seems like the only environmentally responsible option for consumers. However, the environmental costs of dietary choices are not always clear-cut; in some cases, small-scale livestock farming is more sustainable than plant-based food production.

In this example, the first sentence summarizes the main point that has been made so far. Then the topic sentence indicates that this paragraph will address evidence that complicates or contradicts that point.

In more advanced or creative forms of academic writing , you can play with the placement of topic sentences to build suspense and give your arguments more force. But if in doubt, to keep your research paper clear and focused, the easiest method is to place the topic sentence at the start of the paragraph.

View topic sentences in an example essay

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A topic sentence is a sentence that expresses the main point of a paragraph . Everything else in the paragraph should relate to the topic sentence.

Topic sentences help keep your writing focused and guide the reader through your argument.

In an essay or paper , each paragraph should focus on a single idea. By stating the main idea in the topic sentence, you clarify what the paragraph is about for both yourself and your reader.

The topic sentence usually comes at the very start of the paragraph .

However, sometimes you might start with a transition sentence to summarize what was discussed in previous paragraphs, followed by the topic sentence that expresses the focus of the current paragraph.

Let’s say you’re writing a five-paragraph  essay about the environmental impacts of dietary choices. Here are three examples of topic sentences you could use for each of the three body paragraphs :

  • Research has shown that the meat industry has severe environmental impacts.
  • However, many plant-based foods are also produced in environmentally damaging ways.
  • It’s important to consider not only what type of diet we eat, but where our food comes from and how it is produced.

Each of these sentences expresses one main idea – by listing them in order, we can see the overall structure of the essay at a glance. Each paragraph will expand on the topic sentence with relevant detail, evidence, and arguments.

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Developing a Thesis Statement

Many papers you write require developing a thesis statement. In this section you’ll learn what a thesis statement is and how to write one.

Keep in mind that not all papers require thesis statements . If in doubt, please consult your instructor for assistance.

What is a thesis statement?

A thesis statement . . .

  • Makes an argumentative assertion about a topic; it states the conclusions that you have reached about your topic.
  • Makes a promise to the reader about the scope, purpose, and direction of your paper.
  • Is focused and specific enough to be “proven” within the boundaries of your paper.
  • Is generally located near the end of the introduction ; sometimes, in a long paper, the thesis will be expressed in several sentences or in an entire paragraph.
  • Identifies the relationships between the pieces of evidence that you are using to support your argument.

Not all papers require thesis statements! Ask your instructor if you’re in doubt whether you need one.

Identify a topic

Your topic is the subject about which you will write. Your assignment may suggest several ways of looking at a topic; or it may name a fairly general concept that you will explore or analyze in your paper.

Consider what your assignment asks you to do

Inform yourself about your topic, focus on one aspect of your topic, ask yourself whether your topic is worthy of your efforts, generate a topic from an assignment.

Below are some possible topics based on sample assignments.

Sample assignment 1

Analyze Spain’s neutrality in World War II.

Identified topic

Franco’s role in the diplomatic relationships between the Allies and the Axis

This topic avoids generalities such as “Spain” and “World War II,” addressing instead on Franco’s role (a specific aspect of “Spain”) and the diplomatic relations between the Allies and Axis (a specific aspect of World War II).

Sample assignment 2

Analyze one of Homer’s epic similes in the Iliad.

The relationship between the portrayal of warfare and the epic simile about Simoisius at 4.547-64.

This topic focuses on a single simile and relates it to a single aspect of the Iliad ( warfare being a major theme in that work).

Developing a Thesis Statement–Additional information

Your assignment may suggest several ways of looking at a topic, or it may name a fairly general concept that you will explore or analyze in your paper. You’ll want to read your assignment carefully, looking for key terms that you can use to focus your topic.

Sample assignment: Analyze Spain’s neutrality in World War II Key terms: analyze, Spain’s neutrality, World War II

After you’ve identified the key words in your topic, the next step is to read about them in several sources, or generate as much information as possible through an analysis of your topic. Obviously, the more material or knowledge you have, the more possibilities will be available for a strong argument. For the sample assignment above, you’ll want to look at books and articles on World War II in general, and Spain’s neutrality in particular.

As you consider your options, you must decide to focus on one aspect of your topic. This means that you cannot include everything you’ve learned about your topic, nor should you go off in several directions. If you end up covering too many different aspects of a topic, your paper will sprawl and be unconvincing in its argument, and it most likely will not fulfull the assignment requirements.

For the sample assignment above, both Spain’s neutrality and World War II are topics far too broad to explore in a paper. You may instead decide to focus on Franco’s role in the diplomatic relationships between the Allies and the Axis , which narrows down what aspects of Spain’s neutrality and World War II you want to discuss, as well as establishes a specific link between those two aspects.

Before you go too far, however, ask yourself whether your topic is worthy of your efforts. Try to avoid topics that already have too much written about them (i.e., “eating disorders and body image among adolescent women”) or that simply are not important (i.e. “why I like ice cream”). These topics may lead to a thesis that is either dry fact or a weird claim that cannot be supported. A good thesis falls somewhere between the two extremes. To arrive at this point, ask yourself what is new, interesting, contestable, or controversial about your topic.

As you work on your thesis, remember to keep the rest of your paper in mind at all times . Sometimes your thesis needs to evolve as you develop new insights, find new evidence, or take a different approach to your topic.

Derive a main point from topic

Once you have a topic, you will have to decide what the main point of your paper will be. This point, the “controlling idea,” becomes the core of your argument (thesis statement) and it is the unifying idea to which you will relate all your sub-theses. You can then turn this “controlling idea” into a purpose statement about what you intend to do in your paper.

Look for patterns in your evidence

Compose a purpose statement.

Consult the examples below for suggestions on how to look for patterns in your evidence and construct a purpose statement.

  • Franco first tried to negotiate with the Axis
  • Franco turned to the Allies when he couldn’t get some concessions that he wanted from the Axis

Possible conclusion:

Spain’s neutrality in WWII occurred for an entirely personal reason: Franco’s desire to preserve his own (and Spain’s) power.

Purpose statement

This paper will analyze Franco’s diplomacy during World War II to see how it contributed to Spain’s neutrality.
  • The simile compares Simoisius to a tree, which is a peaceful, natural image.
  • The tree in the simile is chopped down to make wheels for a chariot, which is an object used in warfare.

At first, the simile seems to take the reader away from the world of warfare, but we end up back in that world by the end.

This paper will analyze the way the simile about Simoisius at 4.547-64 moves in and out of the world of warfare.

Derive purpose statement from topic

To find out what your “controlling idea” is, you have to examine and evaluate your evidence . As you consider your evidence, you may notice patterns emerging, data repeated in more than one source, or facts that favor one view more than another. These patterns or data may then lead you to some conclusions about your topic and suggest that you can successfully argue for one idea better than another.

For instance, you might find out that Franco first tried to negotiate with the Axis, but when he couldn’t get some concessions that he wanted from them, he turned to the Allies. As you read more about Franco’s decisions, you may conclude that Spain’s neutrality in WWII occurred for an entirely personal reason: his desire to preserve his own (and Spain’s) power. Based on this conclusion, you can then write a trial thesis statement to help you decide what material belongs in your paper.

Sometimes you won’t be able to find a focus or identify your “spin” or specific argument immediately. Like some writers, you might begin with a purpose statement just to get yourself going. A purpose statement is one or more sentences that announce your topic and indicate the structure of the paper but do not state the conclusions you have drawn . Thus, you might begin with something like this:

  • This paper will look at modern language to see if it reflects male dominance or female oppression.
  • I plan to analyze anger and derision in offensive language to see if they represent a challenge of society’s authority.

At some point, you can turn a purpose statement into a thesis statement. As you think and write about your topic, you can restrict, clarify, and refine your argument, crafting your thesis statement to reflect your thinking.

As you work on your thesis, remember to keep the rest of your paper in mind at all times. Sometimes your thesis needs to evolve as you develop new insights, find new evidence, or take a different approach to your topic.

Compose a draft thesis statement

If you are writing a paper that will have an argumentative thesis and are having trouble getting started, the techniques in the table below may help you develop a temporary or “working” thesis statement.

Begin with a purpose statement that you will later turn into a thesis statement.

Assignment: Discuss the history of the Reform Party and explain its influence on the 1990 presidential and Congressional election.

Purpose Statement: This paper briefly sketches the history of the grassroots, conservative, Perot-led Reform Party and analyzes how it influenced the economic and social ideologies of the two mainstream parties.

Question-to-Assertion

If your assignment asks a specific question(s), turn the question(s) into an assertion and give reasons why it is true or reasons for your opinion.

Assignment : What do Aylmer and Rappaccini have to be proud of? Why aren’t they satisfied with these things? How does pride, as demonstrated in “The Birthmark” and “Rappaccini’s Daughter,” lead to unexpected problems?

Beginning thesis statement: Alymer and Rappaccinni are proud of their great knowledge; however, they are also very greedy and are driven to use their knowledge to alter some aspect of nature as a test of their ability. Evil results when they try to “play God.”

Write a sentence that summarizes the main idea of the essay you plan to write.

Main idea: The reason some toys succeed in the market is that they appeal to the consumers’ sense of the ridiculous and their basic desire to laugh at themselves.

Make a list of the ideas that you want to include; consider the ideas and try to group them.

  • nature = peaceful
  • war matériel = violent (competes with 1?)
  • need for time and space to mourn the dead
  • war is inescapable (competes with 3?)

Use a formula to arrive at a working thesis statement (you will revise this later).

  • although most readers of _______ have argued that _______, closer examination shows that _______.
  • _______ uses _______ and _____ to prove that ________.
  • phenomenon x is a result of the combination of __________, __________, and _________.

What to keep in mind as you draft an initial thesis statement

Beginning statements obtained through the methods illustrated above can serve as a framework for planning or drafting your paper, but remember they’re not yet the specific, argumentative thesis you want for the final version of your paper. In fact, in its first stages, a thesis statement usually is ill-formed or rough and serves only as a planning tool.

As you write, you may discover evidence that does not fit your temporary or “working” thesis. Or you may reach deeper insights about your topic as you do more research, and you will find that your thesis statement has to be more complicated to match the evidence that you want to use.

You must be willing to reject or omit some evidence in order to keep your paper cohesive and your reader focused. Or you may have to revise your thesis to match the evidence and insights that you want to discuss. Read your draft carefully, noting the conclusions you have drawn and the major ideas which support or prove those conclusions. These will be the elements of your final thesis statement.

Sometimes you will not be able to identify these elements in your early drafts, but as you consider how your argument is developing and how your evidence supports your main idea, ask yourself, “ What is the main point that I want to prove/discuss? ” and “ How will I convince the reader that this is true? ” When you can answer these questions, then you can begin to refine the thesis statement.

Refine and polish the thesis statement

To get to your final thesis, you’ll need to refine your draft thesis so that it’s specific and arguable.

  • Ask if your draft thesis addresses the assignment
  • Question each part of your draft thesis
  • Clarify vague phrases and assertions
  • Investigate alternatives to your draft thesis

Consult the example below for suggestions on how to refine your draft thesis statement.

Sample Assignment

Choose an activity and define it as a symbol of American culture. Your essay should cause the reader to think critically about the society which produces and enjoys that activity.

  • Ask The phenomenon of drive-in facilities is an interesting symbol of american culture, and these facilities demonstrate significant characteristics of our society.This statement does not fulfill the assignment because it does not require the reader to think critically about society.
Drive-ins are an interesting symbol of American culture because they represent Americans’ significant creativity and business ingenuity.
Among the types of drive-in facilities familiar during the twentieth century, drive-in movie theaters best represent American creativity, not merely because they were the forerunner of later drive-ins and drive-throughs, but because of their impact on our culture: they changed our relationship to the automobile, changed the way people experienced movies, and changed movie-going into a family activity.
While drive-in facilities such as those at fast-food establishments, banks, pharmacies, and dry cleaners symbolize America’s economic ingenuity, they also have affected our personal standards.
While drive-in facilities such as those at fast- food restaurants, banks, pharmacies, and dry cleaners symbolize (1) Americans’ business ingenuity, they also have contributed (2) to an increasing homogenization of our culture, (3) a willingness to depersonalize relationships with others, and (4) a tendency to sacrifice quality for convenience.

This statement is now specific and fulfills all parts of the assignment. This version, like any good thesis, is not self-evident; its points, 1-4, will have to be proven with evidence in the body of the paper. The numbers in this statement indicate the order in which the points will be presented. Depending on the length of the paper, there could be one paragraph for each numbered item or there could be blocks of paragraph for even pages for each one.

Complete the final thesis statement

The bottom line.

As you move through the process of crafting a thesis, you’ll need to remember four things:

  • Context matters! Think about your course materials and lectures. Try to relate your thesis to the ideas your instructor is discussing.
  • As you go through the process described in this section, always keep your assignment in mind . You will be more successful when your thesis (and paper) responds to the assignment than if it argues a semi-related idea.
  • Your thesis statement should be precise, focused, and contestable ; it should predict the sub-theses or blocks of information that you will use to prove your argument.
  • Make sure that you keep the rest of your paper in mind at all times. Change your thesis as your paper evolves, because you do not want your thesis to promise more than your paper actually delivers.

In the beginning, the thesis statement was a tool to help you sharpen your focus, limit material and establish the paper’s purpose. When your paper is finished, however, the thesis statement becomes a tool for your reader. It tells the reader what you have learned about your topic and what evidence led you to your conclusion. It keeps the reader on track–well able to understand and appreciate your argument.

main idea topic sentence and thesis statement

Writing Process and Structure

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Getting Started with Your Paper

Interpreting Writing Assignments from Your Courses

Generating Ideas for

Creating an Argument

Thesis vs. Purpose Statements

Architecture of Arguments

Working with Sources

Quoting and Paraphrasing Sources

Using Literary Quotations

Citing Sources in Your Paper

Drafting Your Paper

Generating Ideas for Your Paper

Introductions

Paragraphing

Developing Strategic Transitions

Conclusions

Revising Your Paper

Peer Reviews

Reverse Outlines

Revising an Argumentative Paper

Revision Strategies for Longer Projects

Finishing Your Paper

Twelve Common Errors: An Editing Checklist

How to Proofread your Paper

Writing Collaboratively

Collaborative and Group Writing

Dalton State

The Roadrunner's Guide to English: Thesis/Topic/Main Idea

  • Planning to Read or Write
  • Editing and Revising
  • Proofreading
  • Unstated Main Idea
  • Thesis/Topic/Main Idea
  • Examples/Supporting Ideas
  • Modes of Organization
  • Sentence Formation (Type 1 Errors)
  • Mechanics (Type 2 Errors)
  • Proper Word Usage (Type 3 Errors)
  • Vocabulary, Context Clues, and Acquiring a Word
  • Practice Games
  • Style, Tone, and Inference
  • Writing in Class
  • English Language Learners
  • Comma Splice
  • Fact & Opinion
  • Fused Sentence
  • Identifying Dependent and Independent Clauses
  • Interactive Semicolon
  • Logical Fallacy
  • Parts of Speech
  • Pronoun/Antecedent Agreement
  • Subject Identification
  • Subject-Verb Agreement
  • Supporting Details

Main Idea/ Thesis Statement

Author: Lydia Postell

The main idea , as we call it in reading class, is the same as the topic sentence in English class.  The main idea, like the topic sentence, simply states what the reading passage is about in one sentence.  There are several ways to find the main idea that you can apply to topic sentences as well.

1. Find the topic of the selection.  In order to find the topic, ask yourself who or what the selection is about.  When you answer either one of those questions, you will have found the topic.  Here are a couple more hints.  The topic will often be a word that is repeated throughout the selection.  For instance, if you were reading a paragraph about dinosaurs and how they became extinct, you would see the reason they became extinct repeated several times throughout the selection, many times using different words. 

2. Another important concept about the topic is that it is always written as a few words or even as one word.  Sometimes the title of the selection is the topic.

3. A third way to look for a main idea is to consider the wording.  When you see words that suggest you could find the information by creating a list, then you have found the main idea sentence.  Examples of these word groups are several kinds , three disadvantages o f, several reasons for , three causes of , and others along these lines.  These types of sentences announce the points the reading will deal with.

A couple of ideas to keep in mind:  Main idea sentences take in everything in the reading passage, so when you look for a main idea sentence, be sure to look for the sentence that can take in all the points the paragraph or reading makes.  Another important idea to keep in mind is that the main idea, like the topic sentence, may appear in other locations besides the beginning of an essay.  While it may appear in the first two or three sentences, it may also appear in the middle or at the end of a reading selection.  Don’t limit yourself by looking only at the beginning!  Look for the most general sentence, and then ask yourself who or what the selection is about.  If you are struggling at that point, you might wish to look at the wording of the sentences to see if one suggests that a list might be coming.  If so, then that is your main idea sentence.

Thesis Statement

Author: Jenny Crisp

In writing, a thesis statement is the most important sentence you will write in an essay. For this class, and likely for most of your college courses, it should be the last sentence – or sometimes the last two sentences – in your introduction paragraph.

The thesis statement will say something about your topic, but doesn't just state your topic. For example, you would not want to write

[Bad thesis]: This is an essay about how everyone should own a dog.

Instead, your thesis statement should say something that is debatable – that is, it should have some attitude . If no one could possibly argue with your thesis statement, what would be the point of writing at all? So, let's work on that thesis statement from before:

How could any reader argue with that? It's your essay – you know what it's going to be about. No one reading your essay knows what it's about yet – otherwise why read it? So, to give it some attitude, let's quit talking about the fact that it’s an essay:

[Decent thesis]: Everyone should own a dog.

OK. That's better – that thesis statement has an attitude. But, if I'm reading your essay, I still don't really know where you're going with this, do I? That's where the other part of the thesis statement comes in: the essay map . An essay map gives your reader some idea of what's coming. What would you talk about in trying to convince your friends that everyone should own a dog? Those are the topics that you will explain in your body paragraphs, and they are the things you should list in your thesis statement’s essay map. Here's an example:

Good thesis: Everyone should own a dog because dogs provide companionship, provide protection, and provide great entertainment.

Now, there is a thesis statement! That one has attitude – it takes a side on the topic. It also provides a map of where the essay is going. With a thesis statement like this, readers know to expect a body paragraph about companionship, then one about protection, and then one about entertainment. Sounds more interesting than just saying “this essay will be about dogs,” huh?

Main Idea - Practice Exercise1

Select the stated main idea in the following passages.

Many people claim that they do not have time to work exercise into their daily schedules.  However, exercise can be easily worked one's daily routine.  For instance, one can do stretches while taking a shower.  While standing in line at the grocery store, one can flex the abs or clench the rear.  One can even do calf raises while talking on the phone.  More ideas: try walking around the building during lunch breaks and always take the stairs.

Many parents tend to think of day-care centers as breeding grounds for colds.  But new research suggests that children in day-care centers appear to develop immunity to many of the viruses responsible for the common cold.  An article published in the Archives of Pediatrics and Adolescent Medicine found that children ages 6 to 11 who had been enrolled at large day-care centers as toddlers had about one-third as many colds as children who had stayed home as toddlers.  Dr. Thomas Ball, one of the authors of the study, says that when children have colds as toddlers, their immune systems are learning from these experiences, and this learning will come back to protect children later in life.  Such news should be reassuring to parents whose preschool children are in daycare.

  • Main Idea - Practice 1 Answer Key

Main Idea - Practice Exercise 2

One sign of pregnancy is nausea upon awakening.  Other signs are increase in size and tenderness of the breasts.  Still other signs include increase in the frequency of urination and an increase in the size of the abdomen.  Thus, aside from pregnancy tests, a woman can sometimes recognize the early signs and symptoms of pregnancy.

Is this year's holiday season making you tired?  You can easily perk up by following a few easy tips.  First, get plenty of rest.  Second, snack wisely.  Third, keep fit.  Exercise is very important during the holidays--and not just for its weight benefits.  Fourth, take a relaxing bath, and finally try sharing with others.

Are you confused by your holiday leftovers?  Well, don't save any food that has been sitting around on your dining room table or counters for more than two hours after cooking.  Do place the leftovers in the refrigerator while they are still warm.  Don't waste those turkey scraps:  add them to a salad or make a delicious soup.  There are many strategies that you should use when dealing with holiday leftovers.  You can even pool your leftovers with friends and neighbors by having an after-holiday potluck dinner.

Yesterday's storm did considerable damage to our neighborhood.  Many stately oaks were uprooted, and several large old pine trees crushed the roofs of at least five houses.  The hail that accompanied the storm damaged all of the cars that were not under shelter, and my neighbor's home was completely demolished.  And my own "detached" garage was certainly detached from its foundation.  Clearly, yesterday's storm caused much destruction.

Some folks think that pets are trustworthy and harmless creatures.  However, it's surprising what little thieves these creatures can be.  My daughter's ferret has stolen my checkbook, my calculator, my wallet, and my change purse.  My officemate's dog stole a neighbor's T-bone steak right off the grill.  My old dog Moonbear was known to steal freshly baked cherry pies and peanut butter cookies, while the dog that lived below us stole his master's roast one day.

Lara is quite different from her sister Lisa.  Lara's hair is jet black and curly, while Lisa's is blond and straight.  Lara stands 5 feet 10 inches in her stocking feet, while Lisa is a mere 5 feet 2 inches (in heels!).  Furthermore, Lara's complexion is olive, quite unlike Lisa's rosy hue. 

Many people are not good listeners.  They may not even realize that they lack this skill.  But almost anyone can become a better listener by being aware of certain negative listening habits.  One such habit is jumping to conclusions before hearing the entire message.  Another bad habit is to nod off when someone is speaking in a monotone.  Turning off to speakers who are not necessarily experts is also a negative listening habit. Yet another bad habit to avoid is the habit of reacting emotionally to certain words.

  • Main Idea - Practice 2 Answer Key

Thesis Statement Handout

  • Thesis Statement Handout handout created by UNC Writing Center
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  • Last Updated: Sep 5, 2023 11:00 AM
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The Writing Center • University of North Carolina at Chapel Hill

Thesis Statements

What this handout is about.

This handout describes what a thesis statement is, how thesis statements work in your writing, and how you can craft or refine one for your draft.

Introduction

Writing in college often takes the form of persuasion—convincing others that you have an interesting, logical point of view on the subject you are studying. Persuasion is a skill you practice regularly in your daily life. You persuade your roommate to clean up, your parents to let you borrow the car, your friend to vote for your favorite candidate or policy. In college, course assignments often ask you to make a persuasive case in writing. You are asked to convince your reader of your point of view. This form of persuasion, often called academic argument, follows a predictable pattern in writing. After a brief introduction of your topic, you state your point of view on the topic directly and often in one sentence. This sentence is the thesis statement, and it serves as a summary of the argument you’ll make in the rest of your paper.

What is a thesis statement?

A thesis statement:

  • tells the reader how you will interpret the significance of the subject matter under discussion.
  • is a road map for the paper; in other words, it tells the reader what to expect from the rest of the paper.
  • directly answers the question asked of you. A thesis is an interpretation of a question or subject, not the subject itself. The subject, or topic, of an essay might be World War II or Moby Dick; a thesis must then offer a way to understand the war or the novel.
  • makes a claim that others might dispute.
  • is usually a single sentence near the beginning of your paper (most often, at the end of the first paragraph) that presents your argument to the reader. The rest of the paper, the body of the essay, gathers and organizes evidence that will persuade the reader of the logic of your interpretation.

If your assignment asks you to take a position or develop a claim about a subject, you may need to convey that position or claim in a thesis statement near the beginning of your draft. The assignment may not explicitly state that you need a thesis statement because your instructor may assume you will include one. When in doubt, ask your instructor if the assignment requires a thesis statement. When an assignment asks you to analyze, to interpret, to compare and contrast, to demonstrate cause and effect, or to take a stand on an issue, it is likely that you are being asked to develop a thesis and to support it persuasively. (Check out our handout on understanding assignments for more information.)

How do I create a thesis?

A thesis is the result of a lengthy thinking process. Formulating a thesis is not the first thing you do after reading an essay assignment. Before you develop an argument on any topic, you have to collect and organize evidence, look for possible relationships between known facts (such as surprising contrasts or similarities), and think about the significance of these relationships. Once you do this thinking, you will probably have a “working thesis” that presents a basic or main idea and an argument that you think you can support with evidence. Both the argument and your thesis are likely to need adjustment along the way.

Writers use all kinds of techniques to stimulate their thinking and to help them clarify relationships or comprehend the broader significance of a topic and arrive at a thesis statement. For more ideas on how to get started, see our handout on brainstorming .

How do I know if my thesis is strong?

If there’s time, run it by your instructor or make an appointment at the Writing Center to get some feedback. Even if you do not have time to get advice elsewhere, you can do some thesis evaluation of your own. When reviewing your first draft and its working thesis, ask yourself the following :

  • Do I answer the question? Re-reading the question prompt after constructing a working thesis can help you fix an argument that misses the focus of the question. If the prompt isn’t phrased as a question, try to rephrase it. For example, “Discuss the effect of X on Y” can be rephrased as “What is the effect of X on Y?”
  • Have I taken a position that others might challenge or oppose? If your thesis simply states facts that no one would, or even could, disagree with, it’s possible that you are simply providing a summary, rather than making an argument.
  • Is my thesis statement specific enough? Thesis statements that are too vague often do not have a strong argument. If your thesis contains words like “good” or “successful,” see if you could be more specific: why is something “good”; what specifically makes something “successful”?
  • Does my thesis pass the “So what?” test? If a reader’s first response is likely to  be “So what?” then you need to clarify, to forge a relationship, or to connect to a larger issue.
  • Does my essay support my thesis specifically and without wandering? If your thesis and the body of your essay do not seem to go together, one of them has to change. It’s okay to change your working thesis to reflect things you have figured out in the course of writing your paper. Remember, always reassess and revise your writing as necessary.
  • Does my thesis pass the “how and why?” test? If a reader’s first response is “how?” or “why?” your thesis may be too open-ended and lack guidance for the reader. See what you can add to give the reader a better take on your position right from the beginning.

Suppose you are taking a course on contemporary communication, and the instructor hands out the following essay assignment: “Discuss the impact of social media on public awareness.” Looking back at your notes, you might start with this working thesis:

Social media impacts public awareness in both positive and negative ways.

You can use the questions above to help you revise this general statement into a stronger thesis.

  • Do I answer the question? You can analyze this if you rephrase “discuss the impact” as “what is the impact?” This way, you can see that you’ve answered the question only very generally with the vague “positive and negative ways.”
  • Have I taken a position that others might challenge or oppose? Not likely. Only people who maintain that social media has a solely positive or solely negative impact could disagree.
  • Is my thesis statement specific enough? No. What are the positive effects? What are the negative effects?
  • Does my thesis pass the “how and why?” test? No. Why are they positive? How are they positive? What are their causes? Why are they negative? How are they negative? What are their causes?
  • Does my thesis pass the “So what?” test? No. Why should anyone care about the positive and/or negative impact of social media?

After thinking about your answers to these questions, you decide to focus on the one impact you feel strongly about and have strong evidence for:

Because not every voice on social media is reliable, people have become much more critical consumers of information, and thus, more informed voters.

This version is a much stronger thesis! It answers the question, takes a specific position that others can challenge, and it gives a sense of why it matters.

Let’s try another. Suppose your literature professor hands out the following assignment in a class on the American novel: Write an analysis of some aspect of Mark Twain’s novel Huckleberry Finn. “This will be easy,” you think. “I loved Huckleberry Finn!” You grab a pad of paper and write:

Mark Twain’s Huckleberry Finn is a great American novel.

You begin to analyze your thesis:

  • Do I answer the question? No. The prompt asks you to analyze some aspect of the novel. Your working thesis is a statement of general appreciation for the entire novel.

Think about aspects of the novel that are important to its structure or meaning—for example, the role of storytelling, the contrasting scenes between the shore and the river, or the relationships between adults and children. Now you write:

In Huckleberry Finn, Mark Twain develops a contrast between life on the river and life on the shore.
  • Do I answer the question? Yes!
  • Have I taken a position that others might challenge or oppose? Not really. This contrast is well-known and accepted.
  • Is my thesis statement specific enough? It’s getting there–you have highlighted an important aspect of the novel for investigation. However, it’s still not clear what your analysis will reveal.
  • Does my thesis pass the “how and why?” test? Not yet. Compare scenes from the book and see what you discover. Free write, make lists, jot down Huck’s actions and reactions and anything else that seems interesting.
  • Does my thesis pass the “So what?” test? What’s the point of this contrast? What does it signify?”

After examining the evidence and considering your own insights, you write:

Through its contrasting river and shore scenes, Twain’s Huckleberry Finn suggests that to find the true expression of American democratic ideals, one must leave “civilized” society and go back to nature.

This final thesis statement presents an interpretation of a literary work based on an analysis of its content. Of course, for the essay itself to be successful, you must now present evidence from the novel that will convince the reader of your interpretation.

Works consulted

We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.

Anson, Chris M., and Robert A. Schwegler. 2010. The Longman Handbook for Writers and Readers , 6th ed. New York: Longman.

Lunsford, Andrea A. 2015. The St. Martin’s Handbook , 8th ed. Boston: Bedford/St Martin’s.

Ramage, John D., John C. Bean, and June Johnson. 2018. The Allyn & Bacon Guide to Writing , 8th ed. New York: Pearson.

Ruszkiewicz, John J., Christy Friend, Daniel Seward, and Maxine Hairston. 2010. The Scott, Foresman Handbook for Writers , 9th ed. Boston: Pearson Education.

You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill

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  • Online Guide to Writing

Thesis Statement and Controlling Idea

So what? This is the question you will get asked if your thesis statement, or main idea, is not obvious in your paper. Your thesis statement is the most important part of your writing; without it, your paper doesn’t have a main point or stance. A thesis statement states the purpose and topic of your writing, and the controlling idea indicates the direction and, often, the writing strategy you will adopt. 

main idea topic sentence and thesis statement

Generally, your thesis is placed at the end of your introduction and is a concise and simple sentence that combines your topic and your position on the topic. Like a road map, your thesis lets your readers know what to expect from the rest of your paper. Your body paragraphs support it, and your essay lacks direction without it.

It is important to keep in mind that this early in your writing, your thesis statement is really a working thesis that you use to begin thinking about your topic. You may revise this thesis many times before you are finished thinking and ready to write your final draft. Below are some sample thesis statements.  

YOUR TOPIC + POSITION ON TOPIC = THESIS STATEMENT

Thesis statement do's and don'ts.

Present an argument, stance, or claim. Can your audience argue with it? 

Provide a key to the organization of your paper. Can you construct body paragraphs that support it? 

Mirror the assignment prompt. Are you following what is expected of you?

Present the thesis at the end of the introduction.  

Answer the question: “so what?”  

Present an argument that can be supported by reputable research. Is your argument logical?

Embrace the “how” and “why” elements. It’s a great strategy to present the problem, examine why it’s a problem, and show how it can be fixed. 

Include announcement style language like “this paper will discuss” or “this will be shown in this essay.” 

Be informative only with no argument or stance, such as, “Some high school seniors decide to take a gap year.” 

Include overly broad or generalized statements like, “Kids of this generation are lazy.”

Force the reader to guess what the paper will prove or discuss 

Be questions. 

Key Takeaways

Your thesis is one statement at the end of your introduction and should be clear, concise, and arguable.

Without a thesis, your paper lacks direction and purpose. 

Mailing Address: 3501 University Blvd. East, Adelphi, MD 20783 This work is licensed under a  Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License . © 2022 UMGC. All links to external sites were verified at the time of publication. UMGC is not responsible for the validity or integrity of information located at external sites.

Table of Contents: Online Guide to Writing

Chapter 1: College Writing

How Does College Writing Differ from Workplace Writing?

What Is College Writing?

Why So Much Emphasis on Writing?

Chapter 2: The Writing Process

Doing Exploratory Research

Getting from Notes to Your Draft

Introduction

Prewriting - Techniques to Get Started - Mining Your Intuition

Prewriting: Targeting Your Audience

Prewriting: Techniques to Get Started

Prewriting: Understanding Your Assignment

Rewriting: Being Your Own Critic

Rewriting: Creating a Revision Strategy

Rewriting: Getting Feedback

Rewriting: The Final Draft

Techniques to Get Started - Outlining

Techniques to Get Started - Using Systematic Techniques

Writing: Getting from Notes to Your Draft - Freewriting

Writing: Getting from Notes to Your Draft - Summarizing Your Ideas

Writing: Outlining What You Will Write

Chapter 3: Thinking Strategies

A Word About Style, Voice, and Tone

A Word About Style, Voice, and Tone: Style Through Vocabulary and Diction

Critical Strategies and Writing

Critical Strategies and Writing: Analysis

Critical Strategies and Writing: Evaluation

Critical Strategies and Writing: Persuasion

Critical Strategies and Writing: Synthesis

Developing a Paper Using Strategies

Kinds of Assignments You Will Write

Patterns for Presenting Information

Patterns for Presenting Information: Critiques

Patterns for Presenting Information: Discussing Raw Data

Patterns for Presenting Information: General-to-Specific Pattern

Patterns for Presenting Information: Problem-Cause-Solution Pattern

Patterns for Presenting Information: Specific-to-General Pattern

Patterns for Presenting Information: Summaries and Abstracts

Supporting with Research and Examples

Writing Essay Examinations

Writing Essay Examinations: Make Your Answer Relevant and Complete

Writing Essay Examinations: Organize Thinking Before Writing

Writing Essay Examinations: Read and Understand the Question

Chapter 4: The Research Process

Planning and Writing a Research Paper

Planning and Writing a Research Paper: Ask a Research Question

Planning and Writing a Research Paper: Cite Sources

Planning and Writing a Research Paper: Collect Evidence

Planning and Writing a Research Paper: Decide Your Point of View, or Role, for Your Research

Planning and Writing a Research Paper: Draw Conclusions

Planning and Writing a Research Paper: Find a Topic and Get an Overview

Planning and Writing a Research Paper: Manage Your Resources

Planning and Writing a Research Paper: Outline

Planning and Writing a Research Paper: Survey the Literature

Planning and Writing a Research Paper: Work Your Sources into Your Research Writing

Research Resources: Where Are Research Resources Found? - Human Resources

Research Resources: What Are Research Resources?

Research Resources: Where Are Research Resources Found?

Research Resources: Where Are Research Resources Found? - Electronic Resources

Research Resources: Where Are Research Resources Found? - Print Resources

Structuring the Research Paper: Formal Research Structure

Structuring the Research Paper: Informal Research Structure

The Nature of Research

The Research Assignment: How Should Research Sources Be Evaluated?

The Research Assignment: When Is Research Needed?

The Research Assignment: Why Perform Research?

Chapter 5: Academic Integrity

Academic Integrity

Giving Credit to Sources

Giving Credit to Sources: Copyright Laws

Giving Credit to Sources: Documentation

Giving Credit to Sources: Style Guides

Integrating Sources

Practicing Academic Integrity

Practicing Academic Integrity: Keeping Accurate Records

Practicing Academic Integrity: Managing Source Material

Practicing Academic Integrity: Managing Source Material - Paraphrasing Your Source

Practicing Academic Integrity: Managing Source Material - Quoting Your Source

Practicing Academic Integrity: Managing Source Material - Summarizing Your Sources

Types of Documentation

Types of Documentation: Bibliographies and Source Lists

Types of Documentation: Citing World Wide Web Sources

Types of Documentation: In-Text or Parenthetical Citations

Types of Documentation: In-Text or Parenthetical Citations - APA Style

Types of Documentation: In-Text or Parenthetical Citations - CSE/CBE Style

Types of Documentation: In-Text or Parenthetical Citations - Chicago Style

Types of Documentation: In-Text or Parenthetical Citations - MLA Style

Types of Documentation: Note Citations

Chapter 6: Using Library Resources

Finding Library Resources

Chapter 7: Assessing Your Writing

How Is Writing Graded?

How Is Writing Graded?: A General Assessment Tool

The Draft Stage

The Draft Stage: The First Draft

The Draft Stage: The Revision Process and the Final Draft

The Draft Stage: Using Feedback

The Research Stage

Using Assessment to Improve Your Writing

Chapter 8: Other Frequently Assigned Papers

Reviews and Reaction Papers: Article and Book Reviews

Reviews and Reaction Papers: Reaction Papers

Writing Arguments

Writing Arguments: Adapting the Argument Structure

Writing Arguments: Purposes of Argument

Writing Arguments: References to Consult for Writing Arguments

Writing Arguments: Steps to Writing an Argument - Anticipate Active Opposition

Writing Arguments: Steps to Writing an Argument - Determine Your Organization

Writing Arguments: Steps to Writing an Argument - Develop Your Argument

Writing Arguments: Steps to Writing an Argument - Introduce Your Argument

Writing Arguments: Steps to Writing an Argument - State Your Thesis or Proposition

Writing Arguments: Steps to Writing an Argument - Write Your Conclusion

Writing Arguments: Types of Argument

Appendix A: Books to Help Improve Your Writing

Dictionaries

General Style Manuals

Researching on the Internet

Special Style Manuals

Writing Handbooks

Appendix B: Collaborative Writing and Peer Reviewing

Collaborative Writing: Assignments to Accompany the Group Project

Collaborative Writing: Informal Progress Report

Collaborative Writing: Issues to Resolve

Collaborative Writing: Methodology

Collaborative Writing: Peer Evaluation

Collaborative Writing: Tasks of Collaborative Writing Group Members

Collaborative Writing: Writing Plan

General Introduction

Peer Reviewing

Appendix C: Developing an Improvement Plan

Working with Your Instructor’s Comments and Grades

Appendix D: Writing Plan and Project Schedule

Devising a Writing Project Plan and Schedule

Reviewing Your Plan with Others

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Person with opened umbrella leaping in front of a yellow wall

Definition to Remember:

  • Thesis = Topic + Claim

Rules to Remember:

  • A thesis statement is the main idea or subject of your paper, while a topic sentence is the main idea of a single paragraph. Sometimes the thesis may develop in your mind early in the writing process, and sometimes it will become more clear or shift as you work through the writing process.
  • The thesis statement should be a single, concise sentence. An effective thesis statement has two parts: (1) the topic and (2) your claim about the topic.
  • Your thesis is a contract that you establish with your readers. The voice, tone, assurances, and promises of your thesis must continue throughout the essay.
  • An effective thesis statement should be as specific as possible and be limited enough to make it manageable. Keep your thesis statement specific enough to be adequately discussed within the length of your paper. If a thesis statement is too general or vague, it can be difficult to decide what to write about.
  • Be wary of absolute words like all, none, everyone, no one, always, never in your thesis statement. If a reader can think of an exception to your absolute statement, he or she may set your entire argument aside. Be careful, too, to avoid claims that are too over-arching and, therefore, suspect.
  • Your thesis should serve as an umbrella for the essay that follows. Every topic sentence for each of the body paragraphs must fit neatly beneath the umbrella, just as every item of evidence also must fit. If anything does not fit under the umbrella of your thesis, revise accordingly to either broaden or narrow your umbrella until the simple math works.
  • Restate your topic as a question. If, for example, your topic is about the health and care of domestic cats, you might restate your topic as follows: Should domestic cats be permitted to roam freely in residential neighborhoods? Do you see how this restatement begins to give both your research and your writing better purpose?
  • Answer your question with a single-sentence claim. An effective thesis statement (1) announces a topic and (2) states a claim. What assertion will you make about your topic and why? To answer our domestic cat question, we might assert the following: Domestic cats should only be permitted to roam freely in residential neighborhoods if they meet specific county-designated standards.
  • Focus your thesis. Remember that the more specific you are, the easier it will be to effectively discuss and prove your thesis: Domestic cats should only be permitted to roam freely in residential neighborhoods if they have a chip inserted that identifies their home, homeowner, and vaccination record.   “Write succinctly. There is a better chance people will read and appreciate your thoughts.” Dr. Aimee Stone Cooper, Pastor

Common Errors:

  • Assuming that the implied focus of an introduction is enough . Every essay must have a clear, concise thesis statement; never assume that your readers understand your intentions.
  • Including a thesis that does not make a claim. With the advent of the internet, gone are the days when informational papers were a necessary exercise. Because most information is available at the touch of an app, your focus must be on the claim you intend to make about the topic you have chosen.
  • Presenting a thesis that is too broad or too narrow. While the line between the two can be tenuous and difficult to locate, it is worth the effort. When a thesis is too broad, it is difficult to argue adequately without leaving notable holes in your rationale; when a thesis is too narrow, it can be challenging to find much at all to say to one another.
  • Neglecting to revise the thesis umbrella as the project unfolds. The more flexible you are, the more successful your end result will be.

Exercise 10.1

Find three thesis statements from papers you have written in the past and list them here. If you walk each through the three-step process on item 6 above, how would each one fare? What changes would you make, and why?

Exercise 10.2

Select one thesis from 10.1. Draw or download an umbrella image, and write your thesis on or above the umbrella. Next, write one topic sentence from each paragraph of your essay vertically beneath the umbrella. Keep all information beneath the shape of the umbrella. As you consider your ideas, what revisions do you need to make? Do you need to broaden your thesis in order to encompass all that falls beneath? Or do you need to focus your thesis better, so your readers are able to immediately see the logic of the ideas that come under the umbrella? Are there topics under the umbrella that could be saved for another essay? Do you need additional evidence under the umbrella to strengthen your overall claim?

Exercise 10.3

Consider an essay or writing assignment you will need to complete in the next week, whether for school, work, or home. What is the topic? What is your claim about the topic? What specific evidence will you include? What will your thesis statement be? Use the progression below to aid your thinking:

Topic    →   Claim     →    Evidence     →    Thesis

The Simple Math of Writing Well Copyright © 2017 by Dr. Jennie A. Harrop is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.

Module 3: Writing Essentials

Thesis statements, learning objectives.

  • Identify strong thesis statements

The thesis statement is the key to most academic writing. The purpose of academic writing is to offer your own insights, analyses, and ideas—to show not only that you understand the concepts you’re studying, but also that you have thought about those concepts in your own way and agreed or disagreed, or developed your own unique ideas as a result of your analysis. The thesis statement is the one sentence that encapsulates the result of your thinking, as it offers your main insight or argument in condensed form.

We often use the word “argument” in English courses, but we do not mean it in the traditional sense of a verbal fight with someone else. Instead, you “argue” by taking a position on an issue and supporting it with evidence. Because you’ve taken a position about your topic, someone else may be in a position to disagree (or argue) with the stance you have taken. Think about how a lawyer presents an argument or states their case in a courtroom—similarly, you want to build a case around the main idea of your essay. For example, in 1848, when Elizabeth Cady Stanton drafted “The Declaration of Sentiments,” she was thinking about how to convince New York State policymakers to change the laws to allow women to vote. Stanton was making an  argument .

Some consider all writing a form of argument—or at least of persuasion. After all, even if you’re writing a letter or an informative essay, you’re implicitly trying to persuade your audience to care about what you’re saying. Your thesis statement represents the main idea—or point—about a topic or issue that you make in an argument. For example, let’s say that your topic is social media. A thesis statement about social media could look like one of the following sentences:

  • Social media harms the self-esteem of American pre-teen girls.
  • Social media can help connect researchers when they use hashtags to curate their work.
  • Social media tools are not tools for social movements, they are marketing tools.

A basic thesis sentence has two main parts:

  • Topic:  What you’re writing about
  • Angle:  What your main idea is about that topic, or your claim

Example Thesis Statements

Thesis:  A regular exercise regime leads to multiple benefits, both physical and emotional.

Topic:  Regular exercise regime

Angle:  Leads to multiple benefits

Thesis:  Adult college students have different experiences than typical, younger college students.

Topic:  Adult college students

Angle:  Have different experiences

Thesis:  The economics of television have made the viewing experience challenging for many viewers because shows are not offered regularly, similar programming occurs at the same time, and commercials are rampant.

Topic:  Television viewing

Angle:  Challenging because shows shifted, similar programming, and commercials

When you read all of the thesis statements above, can you see areas where the writer could be more specific with their angle? The more specific you are with your topic and your claims, the more focused your essay will be for your reader.

Identifying the Thesis Statement

You’ll remember that the first step of the reading process, previewing ,  allows you to get a big-picture view of the document you’re reading. This way, you can begin to understand the structure of the overall text. The most important step of understanding an essay or a book is to find the thesis statement.

A thesis consists of a specific topic and an angle on the topic. All of the other ideas in the text support and develop the thesis. The thesis statement is often found in the introduction, sometimes after an initial “hook” or interesting story; sometimes, however, the thesis is not explicitly stated until the end of an essay. Sometimes it is not stated at all. In those instances, there is an implied thesis statement. You can generally extract the thesis statement by looking for a few key sentences and ideas.

Most readers expect to see the point of your argument (the thesis statement) within the first few paragraphs. This does not mean that it has to be placed there every time. Some writers place it at the very end, slowly building up to it throughout their work, to explain a point after the fact. Others don’t bother with one at all but feel that their thesis is “implied” anyway. Beginning writers, however, should avoid the implied thesis unless certain of the audience. Almost every professor will expect to see a clearly discernible thesis sentence in the introduction.

Thesis statements vary based on the rhetorical strategy of the essay. Thesis statements typically share the following characteristics:

  • presents the main idea
  • is one sentence
  • tells the reader what to expect
  • summarizes the essay topic
  • presents an argument
  • is written in the third person (does not include the “I” pronoun)

The following “How to Identify a Thesis Statement” video offers advice for locating a text’s thesis statement. It asks you to write one or two sentences that summarize the text. When you write that summary, without looking at the text itself, you’ve most likely paraphrased the thesis statement.

You can view the  transcript for “How to Identify the Thesis Statement” here (download).

Writing a Thesis Statement

Remember your thesis should answer two simple questions: What topic are you writing about, and what is your position, or angle, on the topic?

A thesis statement is a single sentence (or sometimes two) that provides the answers to these questions clearly and concisely. Ask yourself, “What is my paper about, exactly?” Answering this question will help you develop a precise and directed thesis, not only for your reader, but for you as well.

A good thesis statement will:

  • Consist of just one interesting idea
  • Be specific and written clearly
  • Have evidence to support it

A good basic structure for a thesis statement is “they say, I say.” What is the prevailing view, and how does your position differ from it? However, avoid limiting the scope of your writing with an either/or thesis under the assumption that your view must be strictly contrary to their view.

Following are some typical thesis statements:

  • Although many readers believe Romeo and Juliet to be a tale about the ill fate of two star-crossed lovers, it can also be read as an allegory concerning a playwright and his audience.
  • The “War on Drugs” has not only failed to reduce the frequency of drug-related crimes in America but actually enhanced the popular image of dope peddlers by romanticizing them as desperate rebels fighting for a cause.
  • The bulk of modern copyright law was conceived in the age of commercial printing, long before the Internet made it so easy for the public to compose and distribute its own texts. Therefore, these laws should be reviewed and revised to better accommodate modern readers and writers.
  • The usual moral justification for capital punishment is that it deters crime by frightening would-be criminals. However, the statistics tell a different story.
  • If students really want to improve their writing, they must read often, practice writing, and receive quality feedback from their peers.
  • Plato’s dialectical method has much to offer those engaged in online writing, which is far more conversational in nature than print.

Thesis Problems to Avoid

Although you have creative control over your thesis sentence, you still should try to avoid the following problems, not for stylistic reasons, but because they indicate a problem in the thinking that underlies the thesis sentence.

  • For example, look at the thesis: Hospice workers need support. This is a thesis sentence; it has a topic (hospice workers) and an angle (need support). But the angle is very broad. When the angle in a thesis sentence is too broad, the writer may not have carefully thought through the specific support for the rest of the writing. A thesis angle that’s too broad makes it easy to fall into the trap of offering information that deviates from that angle.
  • Consider this thesis: Hospice workers have a 55% turnover rate compared to the general health care population’s 25% turnover rate.  This sentence really isn’t a thesis sentence at all, because there’s no angle idea to support. A narrow statistic, or a narrow statement of fact, doesn’t offer the writer’s own ideas or analysis about a topic. A clearer example of a thesis statement with an angle of development would be the following:

Practice identifying strong thesis statements in the following interactive.

argument : in writing, the argument is the main stance, claim, or position that is supported with evidence

explicit thesis : a clear and direct statement of the writer’s claim

thesis statement : a statement of the topic of the piece of writing and the angle the writer has on that topic

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3.8: Main Ideas and Supporting Details

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  • Athena Kashyap & Erika Dyquisto
  • City College of San Francisco via ASCCC Open Educational Resources Initiative

Analyze Thesis or Main Ideas of Texts

Being able to identify the purpose and thesis of a text, while you’re reading it, takes practice. Questioning the text you’re reading is a good place to start. When trying to isolate the thesis, or main idea, of your reading material, consider these questions:

  • What is the primary subject of this text?
  • Is the author trying to inform me, or persuade me?
  • What does the author think I need to know about this subject?
  • Why does the author think I need to know about this subject?

Sometimes the answer to these questions will be very clearly stated in the text itself. Sometimes it is less obvious, and in those cases, the techniques on the following page will be useful.

Implicit vs. Explicit Main Idea/ Thesis Statements

According to author Pavel Zemliansky,

Arguments then, can be explicit and implicit, or implied. Explicit arguments contain noticeable and definable thesis statements and lots of specific proofs. Implicit arguments, on the other hand, work by weaving together facts and narratives, logic and emotion, personal experiences and statistics. Unlike explicit arguments, implicit ones do not have a one-sentence thesis statement. Instead, authors of implicit arguments use evidence of many different kinds in effective and creative ways to build and convey their point of view to their audience. Research is essential for creative effective arguments of both kinds.

Even if what you’re reading is an informative text, rather than an argumentative one, it might still rely on an implicit thesis statement. It might ask you to piece together the overall purpose of the text based on a series of content along the way.

The following video defines the key terms explicit and implicit, as they relate to thesis statements and other ideas present in what you read. It also introduces the excellent idea of the reading voice and the thinking voice that strong readers use as they work through a text.

To help keep you on your toes, the author of this video challenges you to find her spelling mistake in one of her cards along the way!

Explicit v. implicit . Authored by: Michele Armentrout. All Rights Reserved. License Terms: Standard YouTube license.

Take the quiz about implicit and explicit thesis statements to see how well you have understood the information.

Thesis and Topic Sentences

You’ll remember that the first step of the reading process, previewing, allows you to get a big-picture view of the document you’re reading. This way, you can begin to understand the structure of the overall text. A later step in the reading process, summarizing , allows you to encapsulate what a paragraph, section, or the whole document is about. When summarizing individual paragraphs, it’s likely that your summary ends up looking like a paraphrase of that paragraph’s topic sentence .

A paragraph is composed of multiple sentences focused on a single, clearly-defined topic. There should be exactly one main idea per paragraph, so whenever an author moves on to a new idea, he or she will start a new paragraph. For example, this paragraph defines what a paragraph is, and now we will start a new paragraph to deal with a new idea: how a paragraph is structured.

Paragraphs are actually organized much like persuasive papers are. Just like a paper has a thesis statement followed by a body of supportive evidence, paragraphs have a topic sentence followed by several sentences of support or explanation. If you look at this paragraph, for example, you will see that it starts with a clear topic sentence letting you know that paragraphs follow a structure similar to that of papers. The next sentence explains how a paragraph is like a paper, and then two more sentences show how this paragraph follows that structure. All of these sentences are clearly connected to the main idea.

The topic sentence of a paragraph serves two purposes: first, it lets readers know what the paragraph is going to be about; second, it highlights the connection between the present paragraph and the one that came before. The topic sentence of this paragraph explains to a reader what a topic sentence does, fulfilling the first function. It also tells you that this paragraph is going to talk about one particular aspect of the previous paragraph’s main idea: we are now moving from the general structure of the paragraph to the particular role of the topic sentence.

After the topic sentence introduces the main idea, the remainder of the sentences in a paragraph should support or explain this topic. These additional sentences might detail the author’s position on the topic. They might also provide examples, statistics, or other evidence to support that position. At the end of the paragraph, the author may include some sort of conclusion or a transition that sets up the next idea he or she will be discussing (for example, you can see this clearly in the last sentence of the third paragraph).

The Three Parts of a Paragraph

The topic is the subject of the paragraph. It can be:

  • A few words long
  • These words (or words related to the topic) are typically repeated throughout the paragraph
  • Answers the question: What is this paragraph about?

2) Main Idea

This is the writer’s overall point. It can be:

  • If stated in the paragraph, it’s called a “topic sentence”
  • If unstated in the paragraph, the reader must figure it out (infer it) from details
  • General enough to cover the more specific supporting details
  • Usually (but not always!) near the beginning of the paragraph
  • Answers the question: What is the overall point being made about the topic?”

3) Supporting Details

These are the details in the paragraph that support the main idea. They can be either major or minor supporting details.

Tips for Identifying Main Ideas

Although you are learning to put the main idea first in your own paragraphs, professional writers often don’t. Sometimes the first sentence of a paragraph provides background information, poses a question, or serves as a bridge from a previous paragraph. Don’t assume it is the main idea. Use these tips instead:

  • Look for a general statement that appears to “cover” the other information.
  • Figure out the general topic of the paragraph first. Then ask yourself, “What point is the writer trying to make about this topic?”
  • Look for clue words. Main ideas sometimes have words such as “some” or plural nouns like “ways” or “differences” that signal a list of details to come.
  • Is this statement supported by most of the other information?
  • If I turn this statement into a question, does the other information answer it?

SPECIAL NOTE: Sometimes a main idea covers more than one paragraph. This may happen in newspaper articles or when the writer has a lot to say about one topic.

Difference Between the Topic and Main Idea

To understand the difference between a main idea and the topic, imagine that you are listening to your friends talk about their pets. The TV is on, so all you can make out are the name of their pets. If someone asked you what the topic was, you would say “pets.” But because you couldn’t hear the whole thing, you didn’t understand the “main idea” was whose pet was the best. The topic is very broad – the main idea is more specific. The sentences that follow in the paragraph exercise offer examples or descriptions to illustrate or explain the main idea. Note the reading-writing connection--while we are finding the main idea as readers, we will be using the main ideas to write topic sentences in paragraphs.

Exercise \(\PageIndex{1}\)

Read the following paragraph and then decide what the main idea is.

One myth about exercise is that if a woman lifts weights, she will develop muscles as large as a man’s. Without male hormones, however, a woman cannot increase her muscle bulk as much as a man’s. Another misconception about exercise is that it increases the appetite. Actually, regular exercise stabilizes the blood-sugar level and prevents hunger pangs. Some people also think that a few minutes of exercise a day or one session a week is enough, but at least three solid workouts a week are needed for muscular and cardiovascular fitness.

Choose the Main Idea:

a) Women who lift weights cannot become as muscular as men.

b) There are several myths about exercise.

c) Exercise is beneficial to everyone.

d) People use many different excuses to avoid exercising.

Explain why you did or did not choose each possible answer above.

a) ________________________________________________________________________

________________________________________________________________________

b) ________________________________________________________________________

c) ________________________________________________________________________

d) ________________________________________________________________________

Exercise \(\PageIndex{2}\)

“To Sherlock Holmes she is always THE woman. I have seldom heard him mention her under any other name. In his eyes she eclipses and predominates the whole of her sex. It was not that he felt any emotion akin to love for Irene Adler. All emotions, and that one particularly, were abhorrent to his cold, precise but admirably balanced mind. He was, I take it, the most perfect reasoning and observing machine that the world has seen, but as a lover he would have placed himself in a false position. He never spoke of the softer passions, save with a gibe and a sneer. They were admirable things for the observer--excellent for drawing the veil from men's motives and actions. But for the trained reasoner to admit such intrusions into his own delicate and finely adjusted temperament was to introduce a distracting factor which might throw a doubt upon all his mental results.“

The main idea of this paragraph is the first sentence. The first sentence identifies the two characters that the rest of the paragraph is going to describe, and suggests at their relationship. Each sentence that follows either describes the woman, Sherlock Holmes, or how he felt about her or her effect on him.

Exercise \(\PageIndex{3}\)

Here is another example from the same story, see if you can find the main idea:

One night--it was on the twentieth of March, 1888--I was returning from a journey to a patient (for I had now returned to civil practice), when my way led me through Baker Street. As I passed the well-remembered door, which must always be associated in my mind with my wooing, and with the dark incidents of the Study in Scarlet, I was seized with a keen desire to see Holmes again, and to know how he was employing his extraordinary powers. His rooms were brilliantly lit, and, even as I looked up, I saw his tall, spare figure pass twice in a dark silhouette against the blind. He was pacing the room swiftly, eagerly, with his head sunk upon his chest and his hands clasped behind him. To me, who knew his every mood and habit, his attitude and manner told their own story. He was at work again.

a. One night--it was on the twentieth of March, 1888--I was returning from a journey to a patient (for I had now returned to civil practice), when my way led me through Baker Street.

b. As I passed the well-remembered door, which must always be associated in my mind with my wooing, and with the dark incidents of the Study in Scarlet, I was seized with a keen desire to see Holmes again, and to know how he was employing his extraordinary powers

c. His rooms were brilliantly lit, and, even as I looked up, I saw his tall, spare figure pass twice in a dark silhouette against the blind.

d. He was pacing the room swiftly, eagerly, with his head sunk upon his chest and his hands clasped behind him.

The correct answer is a. The first sentence gives you the point-of-view, or who is the person explaining what is happening, and it lets you know that this person is going into a particular place. Each of the other sentences describes the place where he, Dr. Watson, entered, what it looked like, and who was in there.

B is not as strong a choice as a, because it refers to Study in Scarlet and Holmes’ powers, which are not described in the rest of the paragraph. Choice B is too specific to be the main idea of this paragraph. Choices c and d are not correct because they are describing Holmes’ actions, and his walking is not what the whole paragraph is about.

Exercise \(\PageIndex{4}\)

Let’s try one more. Read the following and select which one is the main idea from the list below:

“At three o'clock precisely I was at Baker Street, but Holmes had not yet returned. The landlady informed me that he had left the house shortly after eight o'clock in the morning. I sat down beside the fire, however, with the intention of awaiting him, however long he might be. I was already deeply interested in his inquiry, for, though it was surrounded by none of the grim and strange features which were associated with the two crimes which I have already recorded, still, the nature of the case and the exalted station of his client gave it a character of its own. Indeed, apart from the nature of the investigation which my friend had on hand, there was something in his masterly grasp of a situation, and his keen, incisive reasoning, which made it a pleasure to me to study his system of work, and to follow the quick, subtle methods by which he disentangled the most inextricable mysteries. So accustomed was I to his invariable success that the very possibility of his failing had ceased to enter into my head.”

a. At three o'clock precisely I was at Baker Street, but Holmes had not yet returned.

b. The landlady informed me that he had left the house shortly after eight o'clock in the morning.

c. I sat down beside the fire, however, with the intention of awaiting him, however long he might be

d. I was already deeply interested in his inquiry, for, though it was surrounded by none of the grim and strange features which were associated with the two crimes which I have already recorded, still, the nature of the case and the exalted station of his client gave it a character of its own.

The way to figure out that the answer, this time, is d, is to look at each sentence that follows and ask, does this refer back to the location, Baker Street? Do they refer back to the landlady? Do they refer back to Dr. Watson’s waiting? Or, do they refer back to the case? They both refer back to the current investigation, by talking about Holmes’ way of untangling mysteries, and that Watson’s belief that the investigation would be a success.

The introduction to this paragraph may have thrown you off so be careful to read through the entire paragraph each time, and look at each sentence and its role within the paragraph. Mostly the main idea comes right up front – but not always!

Reading-Writing Connection: Thesis Statements

Exercise \(\PageIndex{5}\)

I. Develop a paragraph. Your paragraph must include the following:

  • Between 7-9 sentences
  • A main idea sentence
  • Each sentence must be developed, and checked for correct spelling and grammar
  • Have at least three of the four different types of sentences (simple, complex, compound, compound-complex)
  • Attach your pre-writing practice after the paragraph, to identify which sentences are major and minor detail sentence

Supporting Details

Earlier we covered what a main idea sentence was: a sentence that names the topic, and allows the reader to understand the focus of the paragraph to follow. It is logical then that the rest of the sentences in the paragraph support the main idea sentence. Support means that they either explain something about the topic, or they offer an example.

We’ve examined the relationship between a text’s thesis statement and its overall organization through the idea of topic sentences in body paragraphs. But of course body paragraphs have a lot more “stuff” in them than just topic sentences. This section will examine in more detail what that “stuff” is made of.

First, watch this video that details the relationship between a topic sentence and supporting details, using the metaphor of a house. The video establishes the difference between major and minor details, which will be useful to apply in coming discussions. (The video has instrumental guitar for audio, but no spoken words, so it can be watched without sound if desired.)

Video: Supporting Details . Authored by: Mastering the Fundamentals of College Reading and Writing. All Rights Reserved. License Terms: Standard YouTube license.

The following image shows the visual relationship between the overall thesis, topic sentences, and supporting ideas:

step_2_2.jpg

This next image shows where a topic sentence might reside in the paragraph, in relation to the rest of the supporting details:

step_2_3.jpg

In #5 of the sequence above, the topic sentence is rephrased between the opening and closing of the paragraph, to reinforce the concept more strongly.

Point, Illustration, Explanation (P.I.E.)

Many authors use the PIE format to structure their essays. PIE = point, illustration, explanation to structure their body paragraph and support their thesis. The point furthers a thesis or claim and is the same as the main idea, the illustration provides support for the point, and the explanation tells the audience why the evidence provided furthers the point and/or the thesis.

4084775_020a741c80_z-241x300.jpg

For example, in his argument against the +/- grading system at Radford, student-writer Tareq Hajj makes the Point that “Without the A+, students with high grades in the class would be less motivated to work even harder in order to increase their grades.”

He Illustrates with a quote from a professor who argues, “‘(students) have less incentive to try’” (Fesheraki, 2013).

Hajj then Explains that “not providing [the most motivated students] with additional motivation of a higher grade … is inequitable.”

Through his explanation, Hajj links back to his claim that “A plus-minus grading scale … should not be used at Radford University” because, as he explains, it is “inequitable.” The PIE structure of his paragraph has served to support his thesis.

All Claims Need Evidence

Ever heard the phrase “everyone is entitled to his opinion”? It is indeed true that people are free to believe whatever they wish. However, the mere fact that a person believes something is not an argument in support of a position. If a text’s goal is to communicate effectively, it must provide valid explanations and sufficient and relevant evidence to convince its audience to accept that position. In other words, “every author is entitled to his opinion, but no author is entitled to have his opinion go unchallenged.”

What are the types of evidence?

Any text should provide illustrations for each of its points, but it is especially important to provide reliable evidence in an academic argument. This evidence can be based on primary source material or data (the author’s own experience and/or interviews, surveys, polls, experiments, that she may have created and administered). Evidence can also stem from secondary source material or data (books, journals, newspapers, magazines, websites or surveys, experiments, statistics, polls, and other data collected by others).

Let’s say, for example, that you are reading an argument that college instructors should let students use cell phones in class. Primary source material might include a survey the author administered that asks students if policies forbidding cell phone usage actually stop them from using their phones in class. Secondary sources might include articles about the issue from Faculty Focus or The Chronicle of Higher Education .

Logos, Ethos, Pathos

Writers are generally most successful with their audiences when they can skillfully and appropriately balance the three core types of appeals. These appeals are referred to by their Greek names: logos (the appeal to logic), pathos (the appeal to emotion), and ethos (the appeal to authority). All of these are used in one way or another in your body paragraphs, particularly as it relates to the support or information in the paragraph.

Ethos-Pathos-Logos.jpg

Logical Appeals

Authors using logic to support their claims will include a combination of different types of evidence. These include the following:

  • established facts
  • case studies
  • experiments
  • analogies and logical reasoning
  • citation of recognized experts on the issue

Authoritative Appeals

Authors using authority to support their claims can also draw from a variety of techniques. These include the following:

  • personal anecdotes
  • illustration of deep knowledge on the issue
  • testimony of those involved first-hand on the issue

Emotional Appeals

Authors using emotion to support their claims again have a deep well of options to do so. These include the following:

  • impact studies

As you can see, there is some overlap on these lists. One technique might work simultaneously on multiple levels.

Most texts rely on one of the three as the primary method of support, but may also draw upon one or two others at the same time.

Check your understanding of supporting details by doing this quiz.

Exercise \(\PageIndex{6}\)

Read the paragraph below and find the main idea and supporting details.

My parents were very strict when I was growing up. My mother in particular was always correcting my behavior. One day when I forgot to look both ways when I was crossing the street, my mother made me go back home; she said that I could not go out at all if I could not be safe. My father was more concerned with my grades. Every night he would make me go to my room before I could watch television.

Let’s examine the pattern for this paragraph. The first sentence (1) presents the main idea, that my parents were strict. The second sentence (2) explains what I mean by “strict,” by saying that my mother was strict in correcting my behavior. The third sentence (3) offers an example of how she would correct my behavior. The fourth sentence (4) explains further, that my father was strict when it came to schoolwork, and then the fifth sentence (5) offers an example of how he was strict.

If we were going to diagram the paragraph above, it would look like this:

EXPLAIN (2)-___________________EXPLAIN (4)

EXAMPLE (3) EXAMPLE (5)

Major and Minor Supporting Details

One way to talk about whether a sentence directly supports the main idea (the second level), or indirectly supports the main idea (the third level) is to call them MAJOR detail sentences or MINOR detail sentences. Major details directly explain something about the topic, while minor details offer examples for the Major detail that came right before.

Exercise \(\PageIndex{7}\)

Read the paragraphs, and then identify each sentence as either a main idea, a major detail, or a minor detail sentence.

Single parents have to overcome many obstacles to return to school. If the child is very young, finding quality babysitting can be difficult. Many babysitters are unreliable and that can mean that the parent has to miss many classes, which can hurt their grades. It is also hard to find enough time to study. Children require a lot of attention and are also noisy, and that can interfere with a parent's ability to complete their homework. Finally, raising children is expensive. Many single parents discover that they can’t meet the costs of both raising children and paying for tuition, books, and fees.

Sentence #1: Sentence #2: Sentence #3: Sentence #4: Sentence #5: Sentence #6: Sentence #7:

My grandmother turned 70 last year and celebrated by going skydiving. She said she always wanted to try and figured it was now or never. Many people think that when you get older you can no longer do fun things, but this is not true. The senior center in town offers dance lessons and also takes groups to the art museum. The classes are always full because so many people want to try new things. Towns are even developing senior living communities around activities such as golf and tennis. Those communities are very popular because people like to live with others who share their interests.

Sentence #1: Sentence #2: Sentence #3: Sentence #4: Sentence #5: Sentence #6: Sentence #7

Exercise \(\PageIndex{8}\)

Below you will find several main idea sentences. Provide appropriate supporting sentences following the pattern of Major-Minor-Major- Minor.

1. It is not a good idea to watch a lot of television. Major: Minor: Major: Minor:

2. Coaches have good reasons to be firm with the players on their team. Major: Minor: Major: Minor:

3. Many people believe it is a bad idea to spank children. Major: Minor: Major: Minor:

4. There are several steps I can take to be successful in college.

Major: Minor: Major: Minor:

Reading-Writing Connection: Supporting Details

Exercise \(\PageIndex{9}\)

Return to the Thesis exercise you did previously. As part of that exercise, you identified two topic sentences from your selected reading. Now, look more closely at the paragraphs where those two topic sentences came from.

  • Write a paragraph that identifies the type of support that each paragraph from the reading uses to reinforce each of those two topic sentences. Are they narrative or personal examples? Are they facts or statistics? Are they quotes or paraphrases from research materials?
  • Write another paragraph that compares the effectiveness of the supporting claims of one of the selected paragraphs against the other one. Which seems more successful in its goal? Why do you feel that way?

Contributors

  • Adapted from English 9Y Pre-College English . Provided by: Open Course Library. CC BY 3.0
  • Adapted from Thesis Statements and Topic Sentences . Provided by: Lumen Learning. CC-BY-NC-SA
  • Adapted from Methods of Discovery: A Guide to Research Writing . Authored by: Pavel Zemliansky. Provided by: Libretexts. CC BY: Attribution

This page last updated June 6, 2020.

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Writing: Main Idea, Thesis Statement & Topic Sentences

Introduction.

While writing it is often noticed that convey of thoughts in proper organisation of language is not an easy task. Additionally, it is equally necessary for the readers to effectively understand what the writer wants to convey. The main idea concerns the summing up of the central idea that is catered to all throughout the writing. However, in this, both the thesis statement and topic sentences play a vital role in linking up the idea that is discussed in the writing with the help of supporting sentences.

Main Idea in Writings

In writing, the main idea is defined as the concepts that are to be dealt with all throughout the essay. Besides, this can be stated as the gist of the discussed topic. However, it is considered the effective main idea of the topic, when it states details, arguments as well as analysis of the topic or the idea that has been dealt with.

Therefore, in order to write an effective main idea, one needs to consider the topic thereby stating what are the things, that are to be mentioned specifically, concerning the topic. However, one needs to carefully narrow down the concept associated with the topic of the essay.

What is a Thesis sentence?

The notion of thesis sentence or statement is considered the central idea statement that supports in providing an explanation of the analysis or arguments that main idea that is associated with the essay. Moreover, this supports readers to effectively understand, what the essay is all about.

main idea topic sentence and thesis statement

In order to write a thesis statement or sentence, the writer needs to create a purpose statement. However, this is stated as the controlling idea that provides an arguable assertion, of both the opinion and the position of the writer.

Significance of a Thesis Sentence

The thesis is considered to be equally important to the writer as well as the reader as it performs the basic functionalities. This includes organisation, control, prediction as well as defining the paper. The thesis is said to be present at the end of the introduction. This sentence provides facts and expresses the complete idea concerning the topic.

What is a Topic Sentence?

It can be said that the thesis statement and topic sentences are analogous in nature. This in simple terms means, the topic statement is the paragraph that talks about the thesis concerning the idea. This statement provides unity as well as coherence to the paragraph. The topic statement is considered integral to the organisation of the stated essay.

Purpose of a Topic sentence

The purpose of the Topic sentence is to provide unity to the paragraph that details the thesis. This also helps to develop the controlling idea that is associated with the thesis. The dominating idea needs to be expressed by the paragraph of the topic sentence and it appears to be the first sentence resembling the entire paragraph. This statement supports displaying the idea that can be either judgemental or descriptive or argumentative associated with the topic. This can as well be considered the declarative statement.

Ways to Begin a Topic Sentence

In order to start with a topic sentence one needs to consider certain steps. The first one is starting with a controversial statement that is followed by a quotation that has been taken from a noteworthy source. This furthermore is followed by referencing the current events. This may be followed by establishing the proof of the authority of the writer thereafter contributing to a rhetorical question. This is followed by the use of statistics and lastly, ended with a short statement that is dramatic in nature.

Difference between a Thesis and a Topic Sentence

Although, the differences are noticed between thesis statement and topic sentences, however they are analogous to each other. The topic sentences refers to the central or the main idea of the paragraph, whereas, the thesis statement is defined as conveying the central or the main idea of the complete essay concerning the topic that is discussed.

In this tutorial, extensive focus has been given to exploring the concepts that are linked with the writing of the main idea together with thesis statement and topic sentences. However, in order to write, an individual need to get acquainted with the main idea that is linked with the topic, as well as the thesis statement and topic sentences. All these are necessary for conveying a thought process together with an effective acknowledgement of the writer.

Q1. Why thesis is considered one of the best strategies for a writer and a reader?

Ans. The thesis is considered one of the best strategies for a writer and a reader, as for a writer it acts as a tool for planning and a sentence summary for the opinion of the writer. Together with this, it determines the real focus of the writer and an organisational framework associated with the topic sentence. On the other hand, for readers, the thesis provides contact with the writer thereby engaging and helping readers to follow the paper. This supports readers to identify the main ideas and how the topic sentence is linked with the thesis.

Q2. What is defined as the purpose of the thesis?

Ans. The purpose of the thesis is stated to be narrow that supports in full exploration of the issues. The nature of the paper whether persuasive or informative in nature is stated by the thesis.

Q3. What are the things to be done in order to write a topic sentence?

Ans. The things to be done in order to write a topic sentence involves, such as directly stating the details and facts, needs to have an effective introduction, rejecting high sounding truisms and many more.

Bitopi Kaashyap

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How to Find the Main Idea

ThoughtCo / Mary McLain 

main idea topic sentence and thesis statement

  • B.A., English, University of Michigan

Questions about the "main idea" of a passage are popular on reading comprehension tests, but sometimes, those questions are pretty difficult to answer, especially for students who are not completely sure they understand what the main idea really is.  Finding the main idea of a paragraph or longer passage of text is one of the most important reading skills to master, along with concepts like making an inference , finding the author's purpose , or understanding vocabulary words in context.

Here are a few techniques to help understand what, exactly, is a "main idea" and how to identify it accurately in a passage.

How to Define the Main Idea

The main idea of a paragraph is the primary point or concept that the author wants to communicate to the readers about the topic. Hence, in a paragraph, when the main idea is stated directly, it is expressed in what is called the topic sentence . It gives the overarching idea of what the paragraph is about and is supported by the details in subsequent sentences in the paragraph. In a multi-paragraph article, the main idea is expressed in the thesis statement, which is then supported by individual smaller points.

Think of the main idea as a brief but all-encompassing summary. It covers everything the paragraph talks about in a general way, but does not include the specifics. Those details will come in later sentences or paragraphs and add nuance and context; the main idea will need those details to support its argument.

For example, imagine a paper discussing the causes of World War I . One paragraph might be dedicated to the role that imperialism played in the conflict. The main idea of this paragraph might be something like: "Constant competition for massive empires led to increasing tensions in Europe that eventually erupted into World War I." The rest of the paragraph might explore what those specific tensions were, who was involved, and why the countries were seeking empires, but the main idea just introduces the overarching argument of the section.

When an author does not state the main idea directly, it should still be implied , and is called an implied main idea. This requires that the reader look closely at the content—at specific words, sentences, images that are used and repeated—to deduce what the author is communicating.

Finding the main idea is critical to understanding what you are reading. It helps the details make sense and have relevance, and provides a framework for remembering the content. Try these specific tips to pinpoint the main idea of a passage.

1) Identify the Topic

Read the passage through completely, then try to identify the topic. Who or what is the paragraph about? This part is just figuring out a topic like "cause of World War I" or "new hearing devices;" don't worry yet about deciding what argument the passage is making about this topic.

2) Summarize the Passage

After reading the passage thoroughly, summarize it in your own words in one sentence . Pretend you have just ten to twelve words to tell someone what the passage is about—what would you say?

3) Look at the First and Last Sentences of the Passage

Authors often put the main idea in or near either the first or last sentence of the paragraph or article, so isolate those sentences to see if they make sense as the overarching theme of the passage. Be careful: sometimes the author will use words like but , however ,  in contrast , nevertheless , etc. that indicate that the second sentence is actually the main idea. If you see one of these words that negate or qualify the first sentence, that is a clue that the second sentence is the main idea.

4) Look for Repetition of Ideas

If you read through a paragraph and you have no idea how to summarize it because there is so much information, start looking for repeated words, phrases, or related ideas. Read this example paragraph :

A new hearing device uses a magnet to hold the detachable sound-processing portion in place. Like other aids, it converts sound into vibrations, but it is unique in that it can transmit the vibrations directly to the magnet and then to the inner ear. This produces a clearer sound. The new device will not help all hearing-impaired people—only those with a hearing loss caused by infection or some other problem in the middle ear. It will probably help no more than 20 percent of all people with hearing problems. Those people who have persistent ear infections, however, should find relief and restored hearing with the new device.

What does this paragraph consistently talk about? A new hearing device. What is it trying to convey? A new hearing device is now available for some, but not all, hearing-impaired people. That's the main idea!

Avoid Main Idea Mistakes

Choosing a main idea from a set of answer choices is different than composing a main idea on your own. Writers of multiple choice tests are often tricky and will give you distractor questions that sound much like the real answer. By reading the passage thoroughly, using your skills, and identifying the main idea on your own, though, you can avoid making these 3 common mistakes : selecting an answer that is too narrow in scope; selecting an answer that is too broad; or selecting an answer that is complex but contrary to the main idea. 

Resources and Further Reading

  • How to Find a Stated Main Idea
  • How to Find an Implied Main Idea
  • Finding the Main Idea Practice
  • Finding Main Ideas In Paragraphs,  http://english.glendale.cc.ca.us/topic.html
  • Finding the Main Idea , Columbia College

Updated by Amanda Prahl 

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Thesis Statements vs. Main Ideas

Related articles, how to write a unified essay, what is a circular narrative style, what narrative point of view is used in "and then there were none".

  • Teacher Tips: How to Write Thesis Statements for High School Papers
  • Explanation on Theme in Literature for Students

The thesis statement is a one-sentence statement that expresses the main idea of the essay. The thesis statement is an arguable statement that communicates the author’s stance on a topic to the reader. In order to better understand the differences between a thesis statement and main idea, it's important to understand the components of an essay. Essentially, it's not a “versus” situation because the thesis statement and main idea cannot exist without the other.

Purpose of the Thesis Statement

The thesis statement is the foundation of the essay because it tells the reader what the essay will be about and gives the essay direction. The goals of the thesis statement are to organize and development your argument and provide your reader with a road map or guide to your argument. The thesis statement should answer a question about the topic you are exploring as a writer. A good thesis statement will express only one main idea and will assert your conclusion about a topic.

Identifying the Main Idea

If you are given a topic to write about, it's important to first do your research and identify some main ideas associated with that topic. If you are writing about a piece of literature or specific work, you'll still need to do research but you will also need to read for key concepts or key ideas within that piece of writing first. Consider rereading the piece of literature to locate the main idea of the writer. Once you have located the main idea, you can then generate an opinion about the idea and create your thesis statement.

Developing the Main Idea

The topic of an essay is the subject, or what the essay is all about. An idea is what the writer says about the topic. The ideas include the main idea, which is then expressed in the form of a thesis statement. The main idea is not arguable like the thesis statement should be; it's simply an idea. Before writing, you should first develop the main idea because you cannot generate an arguable thesis statement about a topic until you have identified what you think of the topic.

Purpose of the Topic Sentence

The main idea of an essay is conveyed through the thesis statement and carried out through the topic sentences. An idea cannot be a statement, but a statement conveys an idea, hence the purpose of a thesis statement to state the point of an idea to convey to the reader in the development of an essay. Topic sentences also express the main idea. It's the first sentence of each subsequent paragraph in the essay and should be followed by supporting details, all supporting the topic sentence, which should support the main idea expressed in the thesis statement.

  • Teacher Vision: Establishing the Main Idea
  • Indiana University Bloomington: How to Write a Thesis Statement

Alyssa Sellors has been in the field of education for five years, teaching English and journalism at the high school level. In addition to teaching, she has also advised the school newspaper and currently advises the yearbook. As a yearbook adviser, she speaks at national conventions hosted by Journalism Educator’s Association and the National Scholastic Press Association.

What Is a Multi-Paragraph Essay?

How to write a college expository essay, how to start an introduction when writing an essay about poetry, what is the central conflict in "beowulf", what is the difference between an elizabethan & petrarchan sonnet, the importance of writing an effective thesis statement, what are the four tips for writing a good thesis statement for an expository essay, how to write an in-class essay, how to write a thesis statement for an autobiographical essay, most popular.

  • 1 What Is a Multi-Paragraph Essay?
  • 2 How to Write a College Expository Essay
  • 3 How to Start an Introduction When Writing an Essay About Poetry
  • 4 What Is the Central Conflict in "Beowulf"?

IMAGES

  1. What is a Topic Sentence & How to Write it

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  2. Topic Sentence: Definition, Examples and Useful Tips for Writing A

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  3. How To Write A Thesis Statement (with Useful Steps and Tips) • 7ESL

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  4. 101 Thesis Statement Examples (2023)

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  5. Topic Sentence: Definition, Examples and Useful Tips for Writing A

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  6. Writing

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VIDEO

  1. THESIS STATEMENT AND TOPIC SENTENCE c

  2. Finding and Writing Thesis Statements

  3. Writing a Thesis Statement

  4. សំណេរអង់គ្លេស ៥

  5. Great Writing 4

  6. How to Write a Thesis Statement, ENC 1101, Miami Dade College, Part 1

COMMENTS

  1. PDF Thesis Statements and Topic Sentences

    • A topic sentence is the first sentence of a paragraph that signals to the reader what the para- graph's main idea will be. • Topic sentences should: » relate back to the argument of the thesis; » concisely summarize the key idea of the paragraph; » can even contain key words from the thesis statement. ToPic SenTenceS and comPrehenSion

  2. Writing

    The main idea, thesis statement, and topic sentences all provide structure to an essay. It is important for both readers and writers to understand the roles of each of these in order to...

  3. How to Write a Thesis Statement

    Step 1: Start with a question Step 2: Write your initial answer Step 3: Develop your answer Step 4: Refine your thesis statement Types of thesis statements Other interesting articles Frequently asked questions about thesis statements What is a thesis statement? A thesis statement summarizes the central points of your essay.

  4. How to Write Topic Sentences

    Step 1: Write a thesis statement The first step to developing your topic sentences is to make sure you have a strong thesis statement. The thesis statement sums up the purpose and argument of the whole paper. Thesis statement example

  5. Developing a Thesis Statement

    Identify a topic Your topic is the subject about which you will write. Your assignment may suggest several ways of looking at a topic; or it may name a fairly general concept that you will explore or analyze in your paper. Consider what your assignment asks you to do Inform yourself about your topic Focus on one aspect of your topic

  6. PDF Tutorial #26: Thesis Statements and Topic Sentences

    is a complete sentence that expresses an opinion or an idea about a topic that can be supported or more fully developed in the body of the essay. summarizes the whole essay in one sentence and promises or reflects the essay's main purpose or "so what". provides the structure or unifying framework for the scope, focus, and direction of the ...

  7. PDF Thesis Statements and Topic Sentences

    Topic sentences and thesis statements are sentences that writers use to focus their ideas and express the main point of their writing. A strong set of topic sentences will work together to support a thesis. thesis statement (the main point of a whole essay) is usually found at the end of an introduction.

  8. The Roadrunner's Guide to English: Thesis/Topic/Main Idea

    The main idea, as we call it in reading class, is the same as the topic sentence in English class. The main idea, like the topic sentence, simply states what the reading passage is about in one sentence. There are several ways to find the main idea that you can apply to topic sentences as well. 1. Find the topic of the selection.

  9. Topic Sentences: How Do You Write a Great One?

    Topic sentence vs. thesis statement. If you're also learning about how to write a thesis paper, you may get topic sentences confused with thesis statements. Basically, topic sentences introduce the main idea of a paragraph, whereas thesis statements introduce the main idea of the entire paper or essay. Both serve the same function—preparing ...

  10. Thesis Statements

    A thesis statement: tells the reader how you will interpret the significance of the subject matter under discussion. is a road map for the paper; in other words, it tells the reader what to expect from the rest of the paper. directly answers the question asked of you. A thesis is an interpretation of a question or subject, not the subject itself.

  11. How to Write a Thesis Statement

    A thesis statement is a sentence in a paper or essay (in the opening paragraph) that introduces the main topic to the reader. As one of the first things your reader sees, your thesis statement is one of the most important sentences in your entire paper—but also one of the hardest to write!

  12. 2.3: Thesis Statements and Topic Sentences

    It is important to distinguish between thesis statements and topic sentences. An essay can have only one thesis statement, but it can have three to five topic sentences. While the thesis is the main idea of the whole essay, the topic sentences are the main ideas of the body paragraphs. The thesis statement is always placed at the end of the ...

  13. Parts of a Thesis Statement

    The thesis statement is the one sentence that encapsulates the result of your thinking, as it offers your main insight or argument in condensed form. A basic thesis statement has two main parts: Topic: What you're writing about. Angle: What your main idea is about that topic.

  14. 5.2: Identifying Thesis Statements and Topic Sentences

    EXERCISE 1: Identify the Topic and Focus. Self-Check. Being able to identify the purpose and thesis of a text, as you're reading it, takes practice. This section will offer you that practice. One fun strategy for developing a deeper understanding the material you're reading is to make a visual "map" of the ideas.

  15. Writing: Thesis Statement and Controlling Idea

    Your thesis statement is the most important part of your writing; without it, your paper doesn't have a main point or stance. A thesis statement states the purpose and topic of your writing, and the controlling idea indicates the direction and, often, the writing strategy you will adopt. Your thesis is like a road map, guiding your readers so ...

  16. Thesis Statements

    An effective thesis statement has two parts: (1) the topic and (2) your claim about the topic. [Image: Edu Lauton | Unsplash] Definition to Remember: Thesis = Topic + Claim; Rules to Remember: A thesis statement is the main idea or subject of your paper, while a topic sentence is the main idea of a single paragraph. Sometimes the thesis may ...

  17. Thesis Statements

    Your thesis statement represents the main idea—or point—about a topic or issue that you make in an argument. For example, let's say that your topic is social media. A thesis statement about social media could look like one of the following sentences: Social media harms the self-esteem of American pre-teen girls.

  18. 3.8: Main Ideas and Supporting Details

    It is logical then that the rest of the sentences in the paragraph support the main idea sentence. Support means that they either explain something about the topic, or they offer an example. We've examined the relationship between a text's thesis statement and its overall organization through the idea of topic sentences in body paragraphs.

  19. Writing: Main Idea, Thesis Statement & Topic Sentences

    Writing: Main Idea, Thesis Statement & Topic Sentences English Organization Introduction While writing it is often noticed that convey of thoughts in proper organisation of language is not an easy task. Additionally, it is equally necessary for the readers to effectively understand what the writer wants to convey.

  20. Test

    The Thesis Statement and Topic Sentences The thesis statement concisely expresses your main idea to your audience and is supported by the body of the essay. Your thesis statement should do more than state a fact; rather, it should make an assertion based on your own ideas. Bad: iPods are devices that transport and play music.

  21. What a Main Idea Is and How to Find It

    In a multi-paragraph article, the main idea is expressed in the thesis statement, which is then supported by individual smaller points. Think of the main idea as a brief but all-encompassing summary. It covers everything the paragraph talks about in a general way, but does not include the specifics.

  22. Thesis Statements vs. Main Ideas

    The main idea of an essay is conveyed through the thesis statement and carried out through the topic sentences. An idea cannot be a statement, but a statement conveys an idea,...

  23. Main Idea, Thesis Statement, and Topic Sentences

    1. Which of the following statements is an example of a thesis statement? More than 250,000 drivers in the United States fall asleep at the wheel every day. Drowsy driving is responsible for ...