states the main idea of the essay called

Understanding & Interacting with a Text

Finding the main idea in a piece of writing is a basic reading skill. No matter what type of expository text you read, the primary comprehension goal is to identify the main idea: the most important point that the writer wants to communicate.  Main ideas are often stated toward the start of a text, usually in an introductory paragraph. They are often repeated in fuller form toward the end of a text, usually in a concluding paragraph. Main ideas may be reinforced through headings, subheadings, and other forms of emphasis. However, main ideas may also be implied and not stated directly in the text.  Sometimes you need to infer the main idea based on the details, facts, and explanations in the text.

Some texts make the task of identifying the main idea relatively easy. Articles in scholarly journals often include an abstract, which is a condensed version of the information in the article, a version which focuses on main ideas. Textbooks, articles in general interest magazines, and online articles in blogs or on websites may include headings and subheadings which make it easier to identify core concepts. All types of texts may include graphic features such as sidebars, diagrams, and charts, which help readers understand complex information and distinguish between essential and inessential points. When reading a text with these features, use them to help identify the main idea.

For texts without graphic features, headings, or abstracts, and/or for texts with implied main ideas, use the following process to identify the main idea:

• Read the text.
• Ask yourself: What is the text about? – What is the topic?
• Ask yourself: What is the author saying about the topic?
• Identify repeated concepts and language; writers often use repetition to emphasize a main idea.
• Summarize the article after you read–put what you think the main idea is into your own words.  See if you can find any statements in the article that are similar to your summary.  If so, it’s likely that you’ve found the main idea.  If the main idea in the text is not stated but implied, then ask if your summary encapsulates the one thing you think the writer wants you to understand about the topic.

For a discussion of finding the main idea which includes examples, link to Finding the Main Idea from Monterey Peninsula College’s Writing Center.

The following two videos also provide very clear, useful discussions of finding the main idea in a text.

Read the article, “ Wikipedia Is Good for You!? ”  Then choose the statement that you think best offers the main idea.  In the answer, you’ll also find one reader’s discussion of her thought process finding the main idea.

• Wikipedia is a good source in certain cases.
• Wikipedia, although itself not always a valid source, is useful as a starting place for ideas, search terms, and other sources.
• Wikipedia, although itself not always a valid source, is useful both as a starting place and as a process guide to producing a text.

The third choice best offers the article’s main idea. I knew that the main idea would have something to do with the topic “Wikipedia,” because of the title.  But because the title included a question mark, I didn’t know if the main idea would end up being for or against Wikipedia.  Immediately after I skimmed, I thought that the main idea was stated directly in paragraph 12: “ There are productive ways to use Wikipedia. In fact, Wikipedia can be a good source in three different ways. Rather than a source to cite, it can be a source of (1) ideas, (2) links to other texts, and (3) search terms. ”  But when I read more fully, I realized that there were other things the author wanted me to understand, concepts more complex and nuanced than a direct “yes” or “no” answer to the title.  I found key ideas relating to the benefits of Wikipedia in paragraphs 2 and 4 in addition to 12. Paragraphs 2 and 4 discussed Wikipedia in terms of writing processes: the need to go back and revise, the co-production of an article’s text based on input from many sources (a “conversation”), and the concept of writing for a real audience. There are also a number of paragraphs that talk about the detriments of Wikipedia if used as a source.  Since there’s no single main idea sentence, I summarized the main concepts into a sentence that condensed and synthesized the article’s ideas into one main idea statement.

• Main Idea. Authored by : Susan Oaks, includes material adapted from Let's Get Writing; attribution below. Project : Introduction to College Reading & Writing. License : CC BY-NC-SA: Attribution-NonCommercial-ShareAlike
• Chapter 1 - Critical Reading. Authored by : Elizabeth Browning, Kirsten DeVries, Kathy Boylan, Jenifer Kurtz, and Katelyn Burton. Provided by : Virginia Western Community College. Located at : https://vwcceng111.pressbooks.com/chapter/chapter-1-critical-reading/ . Project : Let's Get Writing. License : CC BY-NC-SA: Attribution-NonCommercial-ShareAlike
• image of woman thinking, with question mark. Authored by : Tumisu. Provided by : Pixabay. Located at : https://pixabay.com/photos/question-doubt-problem-mark-3385451/ . License : CC0: No Rights Reserved
• video Location of the Main Idea Sentence. Authored by : Marc Franco. Provided by : Snap Language. Located at : https://www.youtube.com/watch?v=U0yZ8z7lt3Q . License : Other . License Terms : YouTube video
• video Implied Main Ideas and a Reading Strategy to Figure them Out. Authored by : Marc Franco. Provided by : Snap Language. Located at : https://www.youtube.com/watch?v=wydDRf3XEb8 . License : Other . License Terms : YouTube video

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Reading to Understand

• Reading to Understand (8 minutes)
• Working with Context Clues (5 minutes)
• The Main Idea

Steps for Identifying the Main Idea

• Knowledge Check
• Academic Reading Challenges (7 minutes)

The main idea is the point or message - what an author presents and what a reader takes from a text. 

Searching for that main idea is a very important activity in understanding a text. It is usually found in the opening paragraph when the author is  setting up the topic  and  expressing the thesis.  

However, the location can vary according to the type of reading. For example, a research article's main idea is toward the end, whereas a persuasive essay's main idea is conveyed at the beginning.

Pre-read to Determine the Overall Topic

Examine the title and then skim the text to determine who or what the reading is about. If you see the same word repeated you know that it is likely the topic or at least an important element of the topic. The topic should be a noun or a noun phrase such as "online education." The topic itself does not convey any meeting us you must read on to determine the main idea.

Ask yourself questions about the text as you read in-depth. Pay close attention to the introduction, the first sentence of body paragraphs, and the conclusion. In these places, the author typically states and supports the main idea. 

Questions to Ask Yourself While Reading : 

• What elements make up this topic?
• What is the author saying about this topic?
• What does the author want me to know or believe about this topic?

Reflect on what you have read. If the main idea is not immediately apparent to you review the introduction and conclusion. The  main idea should be a complete thought  such as "because of its flexibility, comfort, and lower-cost online education is increasing in popularity for younger generations."

Questions to Ask Yourself While Reflecting:

• What is the message I take away from this reading?
• What point does the information add up to?
• What idea does the author reinforce in the conclusion?
• What is the final impression I have about this topic?

Finding the Main Idea

Once you believe you have found the main idea, check that each body paragraph relates to that main idea. The body paragraph should include  supporting ideas  that reinforce and provide greater detail about the main idea. 

Some students find it beneficial to sketch the main idea and supporting ideas in their notes as a concept map.

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How to Find the Main Idea

ThoughtCo / Mary McLain 

• 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 

• Questions for Each Level of Bloom's Taxonomy
• How to Find the Implied Main Idea
• How to Find the Stated Main Idea
• Find the Main Idea Worksheets and Practice Questions
• Finding the Main Idea Worksheet 2
• How to Outline a Textbook Chapter
• Top 5 ACT Reading Strategies
• Paragraph Unity: Guidelines, Examples, and Exercises
• How To Write an Essay
• How to Find the Main Idea - Worksheet
• How to Teach Topic Sentences Using Models
• How to Boost Reading Comprehension With Reciprocal Teaching
• How to Write a Descriptive Paragraph
• An Introduction to Academic Writing
• How to Make an Inference in 5 Easy Steps
• What is The Author's Purpose?

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Essay Basics

For college, an essay is a collection of paragraphs that all work together to express ideas that respond appropriately to the directions and guidelines of a given written assignment. Depending on the instructor, course, or assignment, you might also hear essays called papers, term papers, articles, themes, compositions, reports, writing assignments , and written assessments , but these terms are largely interchangeable at the beginning of college.

Essays and their assignments vary so much that there is no single right kind of essay, so there are no clear answers to questions such as, “How many paragraphs should a college essay have?” or, “How many examples should I use to help convey my ideas?” etc.

But with that said, most essays have a few components in common:

• The Introduction: the beginning parts that show what is to come
• The Body: the bulk of the essay that says everything the assignment calls for
• The Conclusion: the ending parts that emphasize or make sense of what has been said

One rudimentary type of essay that displays these components in a way that’s easy to demonstrate and see is the five-paragraph essay.

The Five Paragraph Essay

The term “five-paragraph essay” refers to a default structure that consists of the following:

• This should clearly state the main idea of the whole essay, also called the essay’s claim or thesis .
• This should also include a brief mention of the main ideas to come, which is the essay map .
• Each paragraph should be about one main point that supports the main idea of the essay (the claim or thesis).
• The topic sentence of each paragraph should be its main point.
• The rest of the sentences of each paragraph should explain or support that topic sentence. In general, the method for this support is to provide an explanation, then an example or analogy, and then a conclusion. See more in the textbook section Paragraph Basics.
• This should clarify the most important ideas or interpretations regarding what the essay has said in the body.

Example Outline of a Five-Paragraph Essay:

• Claim/Thesis: Unleashed dogs on city streets are a dangerous nuisance.
• Essay Map : They scare cyclists and pedestrians, present traffic hazards, and damage gardens.
• Topic Sentence: Dogs can scare cyclists and pedestrians.
• Cyclists are forced to zigzag on the road.
• School children panic and turn wildly on their bikes.
• People who are walking at night freeze in fear.
• Topic Sentence : Loose dogs are traffic hazards.
• Dogs in the street make people swerve their cars.
• To avoid dogs, drivers run into other cars or pedestrians.
• Children coaxing dogs across busy streets create danger.
• Topic Sentence: Unleashed dogs damage gardens.
• They step on flowers and vegetables.
• They destroy hedges by urinating on them.
• They mess up lawns by digging holes.
• Emphasis: The problem of unleashed dogs should be taken seriously by citizens and city council members.

Using a subject assigned by your instructor, create an outline for a five-paragraph essay following these guidelines. Complete sentences are allowed but not required in such outlines.

• Claim/Thesis
• Topic Sentence
• Support (Explanation, Example or Analogy, and Conclusion)

When the above example outline is turned into complete sentences, arranged in paragraphs, and further elaborated here and there for clarity and transition, it becomes a complete five-paragraph essay, as seen here:

Problems Unleashed

With unfamiliar turning lanes branching and numerous traffic lights flashing and aggressive drivers weaving and honking, the last surprise you need as an urban driver is to suddenly see a dog run by in front of you. Unfortunately, given the current ordinances allowing unleashed dogs, this is the case. Unleashed dogs on city streets are a dangerous nuisance. They not only present traffic hazards, but they also scare cyclists and pedestrians, and they damage property such as gardens.

Loose dogs are traffic hazards. Many dogs won’t hesitate to run across busy roads, and as soon as they do, people must suddenly swerve their cars. But the cars swerve where? In crowded city streets, the chances are there to swerve accidentally into other cars or pedestrians. And this danger is made worse by the tendency of children, who often don’t know any better, coaxing dogs across busy streets. These kinds of dangers are frequent enough for causes that can’t be controlled, and the problem of unleashed dogs, which can be controlled, adds to them unnecessarily.

And these dangers aren’t limited to swerving cars, for dogs can scare cyclists and pedestrians too. When dogs dart across their path, cyclists are forced to zigzag on the road. This leads to wrecks, which for cyclists can cause serious injury. And while adult cyclists might maintain control when confronted with a darting dog, children riding home from school can’t be expected to. They typically panic and turn wildly on their bikes. Even among pedestrians, unleashed dogs present a real danger, for no one can predict how aggressive a loose dog might be. When confronted with such dogs, people who are walking at night freeze in fear.

These are some of the most severe problems with unleashed dogs, but there are others still worthy of concern, such as the damage unleashed dogs do to lawns and gardens. Property owners invest significant time and money into the value of their lawns, but dogs can’t understand or respect that. Let loose without a leash, dogs will simply act like the animals they are. They will step on flowers and vegetables, destroy hedges by urinating on them, and mess up lawns by digging holes.

With the city ordinances as they currently stand, unleashed dogs are allowed to cause danger, injury, fear, and property damage. But this doesn’t have to be the case. The problem of unleashed dogs should be taken seriously by citizens and city council members. We would be wise to stop letting dogs take responsibility for their actions, and start taking responsibility ourselves.

Read the above example outline and essay carefully. Then identify any significant changes in ideas, wording, or organization that the essay has made from the original plan in the outline. Explain why the writer would make those changes.

Using your outline from Exercise 1, create a five-paragraph essay.

Keep in mind that the five-paragraph essay is a rudimentary essay form. It is excellent for demonstrating the key parts of a general essay, and it can address many types of short writing assignments in college, but it is too limited to sustain the more complex kinds of discussions many of the higher-level college essays need to develop and present.

For those kinds of essays, you will need a deeper and more complete understanding of the general essay structure (below), as well as an understanding of various writing modes and strategies, research, and format (the sections and chapters that follow).

Complete General Essay Structure

The following explains how to write an essay using a general essay structure at a far more complete level and with far more depth than the five-paragraph essay. This complete general essay structure can be applied to many of your essay assignments that you will encounter in many of your college classes, regardless of subject matter. Although innumerable alterations and variations are possible in successful essays, these concepts are foundational, and they merit your understanding and application as a student of writing.

Also note that there is no set number of paragraphs using a complete general essay structure, as there is in the five-paragraph essay (one introductory, three body, and one concluding). A good introduction can be broken up into more than one paragraph, as can a conclusion, and body paragraphs might number more than three. But this complete general essay structure can indeed be achieved in five paragraphs as well.

Here are the components of complete general essay structure:

• Use a phrase that identifies the subject.
• Consider a title that also suggests the main claim, or thesis (see below, and see the section Thesis for more information)
• Remember that the title is the writer’s main opportunity to control interpretation.
• Don’t use a phrase that could easily apply to all the other students’ essays, such as the number or title of the assignment.
• The Introduction gives the audience a stark impression of what the essay is about.
• In choosing this glimpse, consider that which is surprising, counter-intuitive, or vivid.
• Don’t use false questions, such as those about the reader’s personal experience, those that have obvious answers, or those for which you won’t attempt specific or compelling answers.
• Give a larger understanding of the glimpse above, such as what the important issue is, or why it is significant.
• Don’t get detailed. Save details for the body paragraphs.
• Your main claim or thesis is your position or point about the subject, often confirming or denying a proposition.
• For more details on thesis statements, see the section Thesis.
• Don’t use a question or a fragment as a main claim or thesis.
• Don’t confuse the subject with the main claim or thesis.
• Don’t reference your own essay. State your main points by discussing the subject itself rather than by discussing the essay you’re writing.
• Don’t get detailed here either.
• The Body forms the support for your main claim or thesis.
• Keep in mind that you are not limited to three body paragraphs only, but that three body paragraphs form a good base regardless.
• Give each main point a separate paragraph. Aim for at least three body paragraphs, which means you should have at least three main points that support your main claim or thesis.
• Use topic sentences and supporting sentences in each paragraph. Supporting sentences often come in the form of explanations, then examples or analogies, and then conclusions. For more information on the structure of a paragraph, see the section Paragraph Basics.
• Remember that separate paragraphs not only help the audience read, but they also help writers see their ideas as clarified segments, each of which needs to be completed, connected, and organized.
• For details and strategies about how best to connect paragraphs, see the section Transitions.
• Don’t combine two different focal points into the same paragraph, even if they are about the same subject.
• Don’t contradict the order of your Essay Map from the Introduction, even if minor points require paragraphs in-between the main points.
• Don’t veer away from supporting your main claim or thesis. If any necessary minor point appears to do this, immediately follow it up by conveying its support to your thesis.
• The Conclusion brings your essay to its final and most significant point. Use any one or combination of the following components:
• One good strategy is to use a brief and poignant phrase or quotation.
• Another good strategy is to use a metaphor: description of an interesting image that stands for an important idea.
• Don’t re-state the introduction or be redundant.
• Don’t bring up new details or issues.
• Don’t end on a minor point
• Don’t weaken your essay here with contradiction, false humility, self-deprecation, or un-rebutted opposition.
• Don’t issue commands, get aggressive, or sound exclamatory in the Conclusion.
• For more information, see the section Rhythms of Three.
• Combine or rearrange Emphasis, Humility, and Elevation as needed.

Using a subject assigned by your instructor, create an outline for a complete general essay structure. In your outline, identify the types of ideas that you would use to address the components and principles explained above. Complete sentences are allowed but not required in such outlines.

Using your outline from Exercise 4 and the concepts above, compose a complete general essay.

The Writing Textbook Copyright © 2021 by Josh Woods, editor and contributor, as well as an unnamed author (by request from the original publisher), and other authors named separately is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.

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ENGL000: Pre-College English

The main idea and supporting sentences.

In this course, you will practice writing analytical paragraphs in which you state the main idea clearly in a topic sentence and support the main idea with evidence and examples. Read this lecture and complete the included activities, in which you identify the main ideas and supporting details of different paragraphs. When you are done, check your work against the Answer Key .

Last time we covered what a main idea sentence is: a sentence that tells the reader what the paragraph is about. The rest of the sentences in the paragraph support the main idea sentence. "Support" means that the sentences either explain a detail of the main idea or give an example. Read the paragraph below. The main idea is underlined . The "support" that explains is bolded , and the "support" that offers an example is in italics. 

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 as 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 this paragraph.

The first sentence (1) presents the main idea: "my parents were very strict". The second sentence (2) explains what I consider "strict" by saying that my mother frequently corrected 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 the fifth sentence (5) offers an example of how he was strict. 

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

One way to talk about whether sentences directly support the main idea (as the second level does), or indirectly support the main idea (the bottom level) is to call them MAJOR  detail sentences and MINOR detail sentences. Major details directly explain something about the main idea. Minor details offer examples that illustrate major details.

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

Paragraph 1:

Single parents have to overcome many obstacles to return to school. If their children are 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 that can interfere with a parent being able 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:

Paragraph 2:

My grandmother turned 70 last year and celebrated by going skydiving. She said she always wanted to skydive 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.

Practice II: Below you will find several main idea sentences. Write your own supporting sentences by using major and minor details.

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

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

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

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

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Central Idea in Literature: Definition, Meaning, and Examples

Krystal N. Craiker

In literature, there are many elements that work together to make a cohesive story. At the heart of each story is the central idea.

The central idea, also called the main idea, is a brief, overall summary of what the entire story is about. Typically, we explain the central idea in one sentence.

The central idea is different from the theme and the message. It’s the backbone of a story’s plot. Let’s take a closer look at what the central idea means in literature.

Central Idea Definition: What Is It in a Story?

Central idea meaning: what does it mean, the importance of a central idea in a story, tips on using central ideas in your story, examples of the central idea of a story, conclusion on central ideas in a story.

The definition of the central idea is a statement that explains the main scenario of a story. All plot lines, supporting details, and conflicts support the central idea.

You can think of the central idea as a very brief summary of a story. In other words, if someone asks what the story is about, the central idea is what you would tell them.

Fairy tales are a great way to understand literary elements. Let’s use Goldilocks and the Three Bears as an example.

The central idea of this story is:

A girl named Goldilocks enters a house in the woods, helps herself to porridge, and breaks furniture, not knowing the house belongs to three bears.

We don’t explore every individual event of the story or even dive into the themes. We briefly summarize the plot and hint that there will be consequences to Goldilocks’ actions. The central idea doesn’t give away “spoilers” by revealing what happens in the story’s climax when the bears come home.

People often confuse the central idea with a story’s theme. These two literary elements are closely related but distinct.

The central idea addresses the main ideas of the plot. The theme, on the other hand, is the unifying element or elements weaved into a story. A literary theme is a generic truth found in many stories. Themes often have a message for readers from the author.

Examples of literary themes include courage, friendship, revenge, and power.

Central ideas are not generic. They are specific to an individual story.

Let’s return to our example of Goldilocks and the Three Bears . The theme is the effect of selfishness on others. There’s a message or moral there too: Be considerate of other people.

You can see how these differ from the central idea statement, which dealt with the story’s main character and plot.

The theme and message all come from the central idea. You can’t have a cohesive story without the central idea as a starting point.

Imagine writing a story is like building a house. When you have a clear central idea for your story, you have laid the foundation. This foundation supports every other part of the story.

The floors and walls of your story are the external conflict, internal conflict, characters, plot elements, setting, and more. The theme is like the electrical system that runs throughout the entire building.

You can’t have a sturdy house without a solid foundation. Likewise, you can’t have a strong story without a clear central idea.

In the Goldilocks story, the plot events, characters, and theme all relate back to our central idea. Imagine if the theme of Goldilocks and the Three Bears was forbidden love overcoming all. That doesn’t fit the story at all! The fable would sound very strange.

Here are a few tips on the most effective ways to use central ideas in your writing.

Write a Strong Central Idea Statement

The stronger your foundation, the sturdier your house. The same goes with a central idea.

You can get the point across with a poorly written central idea statement. In fact, a poorly written central idea is a great starting point.

But spend some time honing your central idea. A well-written central idea will explore not just the main plotline but also touch on underlying themes.

Let’s improve our Goldilocks central idea statement:

A young girl suffers the consequences of her selfish actions after breaking and entering and destroying property in a home owned by three bears.

This central idea still tells us the gist of the story and introduces the main characters, while also touching on the theme of selfishness.

Match the Theme to the Story

Like we discussed above, throwing in a theme about forbidden love to the classic Goldilocks tale won’t fit the story. The themes of a story must be relevant to the central idea.

Most novels or other long-form work have more than one theme expressed in the story. Spend some time figuring out which themes fit your central idea. Then you can plan character arcs , conflicts, or other elements to help you explore that theme.

Start Big, Narrow Down

It’s difficult to sum up an entire story in one or two brief sentences. Start with a big overview then whittle it down to find your central idea.

You can start by writing a synopsis, which is a roughly two-page plot summary. Then try to narrow that down into a paragraph by focusing on the main events and key characters.

Writing a central idea statement from a paragraph is much easier. Keep it short: one or two sentences max.

As an added bonus, you can then use your central idea as your elevator pitch to quickly introduce people to your book.

Your book is likely more complicated than a fairy tale. Let’s look at some examples of central ideas in other works.

Romeo and Juliet by William Shakespeare

Two young, star-crossed lovers cause a deadly war between opposing families when they hastily marry.

The Great Gatsby by F. Scott Fitzgerald

In the 1920s, Jay Gatsby has achieved great wealth through unsavory means in an attempt to impress the love of his life, Daisy Buchanan. Regardless, they are still divided by their differences in social status, rampant materialism, and Daisy’s abusive husband.

A Christmas Carol by Charles Dickens

A lonely miser named Ebenezer Scrooge is haunted by the spirits of Christmas Past, Present, and Future to confront his life choices and learn about love and compassion.

Finding the central idea of a story will help you understand how the plot and themes work together. Discovering your own story’s central idea will guide your writing process and help you develop a cohesive story.

Do you want to know how to build a world your readers won’t forget? Download this free book now:

World-Building 101: How to Construct an Unforgettable World for your Fantasy or Sci-Fi Story!

This guide is for all the writers out there who want to construct an unforgettable world that your readers can't help but get lost in, learn how to invent species, gods, monsters and more in our immersive guide..

Be confident about grammar

Check every email, essay, or story for grammar mistakes. Fix them before you press send.

Krystal N. Craiker is the Writing Pirate, an indie romance author and blog manager at ProWritingAid. She sails the seven internet seas, breaking tropes and bending genres. She has a background in anthropology and education, which brings fresh perspectives to her romance novels. When she’s not daydreaming about her next book or article, you can find her cooking gourmet gluten-free cuisine, laughing at memes, and playing board games. Krystal lives in Dallas, Texas with her husband, child, and basset hound.

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Fifth grade reading skills

Course: fifth grade reading skills   >   unit 1, identifying the main idea | reading.

• What is a main idea? | Reading

What's the main idea?

• Which choice best captures the central idea of the passage?
• What is the author's main point in this passage?
• The main idea of the passage is...

What ISN'T the main idea?

• Look for clues in the title, the first sentence, and the last sentence of a passage. The author might state the main idea right at the beginning of the passage.
• Jot quick notes to yourself on scratch paper as you read. Taking notes is always helpful for understanding a passage.
• Pay attention to repeated words or ideas. If the author keeps mentioning the same thing over and over, it's likely that it's the main idea.
• Summarize the passage in your own words. If you can boil the passage down to just one or two sentences, that's probably the main idea.

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TOPIC SENTENCE/ In his numerous writings, Marx critiques capitalism by identifying its flaws. ANALYSIS OF EVIDENCE/ By critiquing the political economy and capitalism, Marx implores his reader to think critically about their position in society and restores awareness in the proletariat class. EVIDENCE/ To Marx, capitalism is a system characterized by the “exploitation of the many by the few,” in which workers accept the exploitation of their labor and receive only harm of “alienation,” rather than true benefits ( MER 487). He writes that “labour produces for the rich wonderful things – but for the worker it produces privation. It produces palaces—but for the worker, hovels. It produces beauty—but for the worker, deformity” (MER 73). Marx argues capitalism is a system in which the laborer is repeatedly harmed and estranged from himself, his labor, and other people, while the owner of his labor – the capitalist – receives the benefits ( MER 74). And while industry progresses, the worker “sinks deeper and deeper below the conditions of existence of his own class” ( MER 483).  ANALYSIS OF EVIDENCE/ But while Marx critiques the political economy, he does not explicitly say “capitalism is wrong.” Rather, his close examination of the system makes its flaws obvious. Only once the working class realizes the flaws of the system, Marx believes, will they - must they - rise up against their bourgeois masters and achieve the necessary and inevitable communist revolution.

Not every paragraph will be structured exactly like this one, of course. But as you draft your own paragraphs, look for all three of these elements: topic sentence, evidence, and analysis.

• picture_as_pdf Anatomy Of a Body Paragraph

Pasco-Hernando State College

• The Writing Process
• Definition of a Paragraph
• Parts of a Paragraph; Multi-Paragraph Documents
• Rhetorical Modes; Review of Paragraphs
• Unity and Coherence in Essays
• Proving the Thesis/Critical Thinking
• Appropriate Language

Related Pages

What is a paragraph.

A paragraph is a series of sentences on a specific point or topic.  A well written paragraph must have a topic sentence which states the main idea: what the paragraph is about.  While some say the  topic sentence can be anywhere in the paragraph, it is best to put it as the first sentence in a paragraph.  The rest of the sentences in the paragraph support, elaborate, and/or further explain the main idea expressed in the topic sentence.

Paragraphs have varying length depending upon various factors.  An average paragraph in an academic essay is about six to eight sentences.

Types of Paragraphs

There are various types of paragraphs such as summaries, abstracts, and answers to questions for a specific assignment.  In addition, there are specialized types of paragraphs for various reports such as feasibility studies or performance reports.

The types of paragraphs covered in this lesson are general paragraphs as would be used in the body of a letter or an academic essay, including general research papers (research essays).

Parts of a Paragraph

Topic sentence – purpose of a paragraph.

Unless you are writing specialized report such as a scientific research paper or a feasibility study that may otherwise show the purpose of a paragraph such as a heading , a well written paragraph must have a topic sentence which states what the paragraph is about.

Whether you are writing a paragraph for a specific assignment, an academic essay, a research paper, or a simple letter, each paragraph

The topic sentence should be the first sentence of the paragraph so that the reader knows what the paragraph is about.  The topic sentence in a body paragraph of an essay must be support for the thesis: a reason why the thesis is true or accurate.

The rest of the sentences in the paragraph of an essay support, elaborate, and/or further explain the topic sentence.

Here is an example of a paragraph:

The first sentence is the topic sentence. See how the rest of the sentences support, elaborate, and/or or further explain it.

Almost every aspect of modern life has been improved through convenience provided by technology.    From the alarm clock in the morning to the entertainment center at night, everyday life is improved.  The automatic coffee maker has the coffee ready at a certain time. Cars or public transportation bring people to work where computers operate at the push of a button.  At home, there’s the convenience of washing machines and dryers, dishwashers, air conditioners, and power lawn mowers.  Modern technology has made life better with many conveniences.

Everything in this paragraph is about how modern life has been improved through convenience provided by technology.

Unity and Coherence

A paragraph must have unity.

All of the sentences of a particular paragraph must focus on one point to achieve one goal: to support the topic sentence.

A paragraph must have coherence.

The sentences must flow smoothly and logically from one to the next as they support the topic sentence.

The last sentence of the paragraph should restate the topic sentence to help achieve unity and coherence.

Here is an example with information that  does not  support the topic sentence.

Almost every aspect of modern life has been improved through convenience provided by modern technology.  From the alarm clock in the morning to the entertainment center at night, everyday life is improved. The automatic coffee maker has the coffee ready at a certain time. People are more concerned about health issues and good air quality, so they have started walking or riding a bike to work even though they have the option of using a car or public transportation.   There’s the convenience of washing machines and dryers, dishwashers, air conditioners, and power lawn mowers.  Modern technology has made life better with many conveniences.

See how just one non-supporting sentence takes away from the effectiveness of the paragraph in showing how modern conveniences make life better since the unity and coherence are affected.  There is no longer unity among all the sentences.  The thought pattern is disjointed and the paragraph loses its coherence.

Here’s another example of a paragraph

Not only has modern technology improved life through convenience, it has improved life through efficiency.  The time saved with machines doing most of the work leaves more time for people to develop their personal goals or to just relax.  Years ago, when doing laundry could take all day, there wasn’t time left over to read or go to school or even just to take a leisurely walk.  Nowadays, people have more time and energy than ever to simply enjoy their lives thanks to the efficiency of modern technology.

Note: See how all the sentences work together to support the point that technology has improved lives through efficiency.

Transitions – Words that Connect

Transitions  are words, groups of words, or sentences that connect one sentence to another or one paragraph to another.

They promote a logical flow from one idea to the next.

While they are not needed in every sentence, they are missed when they are omitted since the flow of thoughts becomes disjointed or even confusing.

There are different types of transitions such as the following:

• Time – before, after, during, in the meantime, nowadays
• Space – over, around, under
• Examples – for instance, one example is
• Comparison –  on the other hand, the opposing view
• Consequence – as a result, subsequently

These are just a few examples.  The idea is to paint a clear, logical connection between sentences and between paragraphs.

Here’s how transitions help make a paragraph unified and coherent

Not only  has modern technology improved life through convenience, it has improved life through efficiency.  The time saved with machines doing most of the work leaves more time for people to develop their personal goals or to just relax.   Years ago,  when doing laundry could take all day, there wasn’t time left over to read or go to school or even just to take a leisurely walk.   Nowadays , people have more time and energy than ever to simply enjoy their lives thanks to the efficiency of modern technology.

Each part of a paragraph must support the topic sentence.  In addition, the sentences must flow logically from one to the other.

See how the following paragraph has ideas that don’t seem to belong

Growing flowers is fun.  The sun rises in the morning and warms the soil.  Flowers come in all different sizes, shapes, and colors.  Sometimes, there is not enough rain.  Flowers also bloom during different times of the year.  Flowers need nutrients to grow strong and beautiful.  There are some children who like to pick the flowers. There are different growing seasons in different parts of the country.  Flowers that will grow high should be planted behind those that will not grow as high.  Some people let their dog’s leash extend allowing the dog to go into the flower beds which is not very nice. Designing a flower bed has to consider the different times the flowers will bloom.  A substitute for rainfall should be planned.  It is fun to grow flowers.

Here is a revised version with unity and coherence.  See how each sentence is clearly part of the whole which is to show how it is fun to grow flowers.

Growing flowers is fun.   Planning the garden is the first step, and it is part of the fun.  Flowers must be selected for their size, color, and time of bloom.  Selections should be made so that there is at least one type of flower blooming throughout the season and that taller flowers are behind shorter ones.  Meeting the challenges to assure growth such as with an irrigation system or hand watering and fertilizing when needed is also part of the fun.   It’s wonderful to check the garden every day to see the little green sprouts starting to appear.  It gives a great sense of accomplishment and joy to see the flowers in bloom.  It is fun to grow flowers.

An example of a paragraph from a business letter  which does  have unity and coherence:

There are several reasons to select my company to do this job.  We are a family owned and operated business and have been in business in this county for thirty-five years.  In addition to thousands of satisfied customers, we have proudly sponsored many community events and organizations.  All of our employees live in this county, and most have stayed with us for years.  We have successfully kept our overhead low and pass those savings onto our customers.  By far, we are the best company to complete this project.

Note: See how all the sentences work together to support the point that we are the best company to hire.

Here’s a version of the paragraph which  does not  have unity and coherence:

I am happy that the warm weather is finally here! It’s been a cold winter. There are several reasons to select my company to do this job.  By far, we are the best company to complete this project.  I have a large family, and in addition to having Sunday dinners, we work together in the company which has many satisfied customers.  Some of my employees take the bus to work, so I am concerned about our public transportation system.  We have proudly served our community, and we use cost saving methods to keep prices low.

An example of a paragraph in an inter-office memo

Beginning January 1, we will have a revised policy concerning new customers.  The updated intake form includes additional information, so please be sure to read through and complete each section.  Pay particular addition to the additional questions at the bottom as they are now required by the insurance company.  We would like to have e-mail addresses as well.  You can assure customers that we will not be sending them solicitations nor giving the list to any other business.  Be sure to fill in the information neatly and accurately. It is preferred that the information be entered directly into the computer although we realize there are times when that is not practical and a hard-copy form will have to be completed by hand.  Review the instructions on the back page of the form for more details on the revised policy for new customers.

Note:  See how all the sentences work together to support the point shown in the topic sentence that modern technology has expanded accessibility.

Closing/Transitional Statements in Paragraphs

The last sentence of a paragraph should remind the reader of the point of the paragraph and transition into the next paragraph if there is one.  See how the last sentence, for example, in the above paragraph reminds the reader of what the paragraph is about: Review the instructions on the back page of the form for more details on the revised policy for new customers.

Multi-Paragraph Documents

Most paragraphs we see are part of a multi-paragraph document: newspaper and magazine articles, books, business letters and inter-office memorandum, “how-to” documents, and other informational documents.  Usually, there is an organization of the paragraphs in a specific way.  The opening paragraph generally gives some idea of what the document is about.  The middle paragraphs give more details about the specific point.  The last paragraph ends the writing, generally by summing up and repeating the point.

There are some context-specific documents that have moe clearly defined paragraphs which are something included as sections of the writing.  For example, a feasibility report might have paragraphs as follows: abstract and/or summary, introduction, discussion, conclusion, recommendations.

Paragraphs in Business Letters and Inter-Office Memorandum

Business letters and inter-office memoradums basically have the same organization of the content:  an introduction paragraph, paragraphs that prove or further explain, and a concluding paragraph which sums up and repeats the point.  A business letter, however, is generally written on company stationery and has the date and address block in the upper left, a Re: line, a salutation such as Dear Mr. Haller (although some are no longer using a formal salutation), and a complimentary closing such as Sincerely.    An inter-office memorandum is generally written on plain paper, sometimes with the company logo as part of the template, lines with To:, From:, Date:, and Re: in the upper left, and no complimentary closing.

Paragraphs in Informational Documents and Academic Essays

Informational documents.

This refers to groups of writings that are designed to give information about a topic or position on a topic.  While they all include a specific thesis (point), have an introduction and concluding paragraph, and have paragraphs that proof or explain the point, there can be wide variety on where the thesis is expressed and the ancillary information presented that is supplemental to the thesis.  These are sometimes called essays.  However,  academic  essays do have a very specific organizational pattern.

Academic Essays

The introduction paragraph and the concluding paragraph of an essay are different from a general paragraph.  An introduction contains general background information on a topic and leads into a thesis statement.  The sentences with background information should be general and not contain proof of the thesis. The sentences should be relevant, however, and logically flow into the thesis.  Background sentences include information about the topic and the controversy. Some instructors may prefer other types of content in the introduction in addition to the thesis.  It is best to check with an instructor as to whether he or she has a preference for content.  In any case, there must be unity and coherence in an introduction paragraph as well. 

While the body paragraph of an academic is the same as a general paragraph in that they have a topic sentence and sentences that support it, the topic sentence must be a reason why the thesis of the essay is accurate.  Body paragraphs should clearly support the thesis and not contain any extraneous information. However, one way of proving your thesis is right is by presenting the opposing view and then rebutting it, that is, showing how it is not valid.  

Some instructors say that any opposing information should be in a separate rebuttal paragraph before the concluding paragraph.  If not specifically indicated by your instructor, either putting opposing information into the paragraphs related to the specific information or having a separate rebuttal paragraph is appropriate, but not both in the same essay.

A concluding paragraph sums up the proof and restates the thesis. Some instructors ask for a statement drawing an implication of the information presented instead of or in addition to a restatement of the thesis.  In either case, while a concluding paragraph as with the introduction paragraph does not start with a topic sentence and have the rest of the sentences support the topic sentence, the concluding paragraph is similar in that the summary of the proof ties directly into the thesis or statement of general implication.  There are not extraneous, off-topic sentences

Rhetorical Modes as Types of Paragraphs

Narration is when an author writes as though telling a story.  This mode is used more often in fiction, but it can be used in academic essay writing when the best way to help prove the thesis is by relating a sequence of events.

Description/Definition/Exemplification, and Classification

These closely related modes use specific information about certain aspects of a thing, event, or situation. The terms speak for themselves.  Description uses details describing the thing, event, or situation. Definition defines it. Exemplification uses examples, and classification uses categories.

The rose was red. (description)

A rose is a flower with soft petals and a beautiful, brief bloom. (definition)

Roses comes in a variety of colors such as red, yellow, and white. (example)

Roses come in a variety of types including miniature, climbing, hybrid tea, and floribunda. (classification)

Compare/Contrast

Comparing and/or contrasting one thing, event, or situation is a helpful way to show what it is and isn't.  If someone were arguing that a particular type of sneaker was the best, it would be useful to compare to others for support, durability, and price.

Cause and/or Effect

This mode is useful in arguing for or again an action.  Showing the cause and/or effect of an action can be persuasive.  For example, if someone were arguing for an increase in the speed limit, statistics showing an increase in fatalities where limits are higher would be a persuasive argument.

Persuasion/Argumentation

In a sense, the ultimate intent of all communication is persuasion.  Argumentation is one way of talking about debate.  We think of arguing as what we do among friends or family members - and it is - but there is a formal way to argue to prove our point.  Actually, we can learn how to better have civil arguments which will be constructive.  In thinking about persuasion/argumentation as a rhetorical mode, it refers to a type of writing that is clearly arguing in support of a specific point.

• A paragraph is a series of sentences on a particular point.
• A paragraph should begin with a topic sentence which states that point.
• Sentences with supporting details such as examples should follow.
• A paragraph must have unity and coherence where the sentences smoothly and logically flow from one to the next and stay focused on supporting the topic sentence.
• Transition words and phrases should be used to connect sentencs and paragraphs for unity and coherence
• Paragraphs that are part of multi-paragraph documents serve specific functions
• Special Types of Paragraphs in Business Letters and Inter-Office Memorandum
• Special Types of Paragraphs in Informational Documents and Academic Essays
• Rhetorical Modes can be used as types of paragraphs
• Printer-friendly version

Identifying Main Ideas

Explicit main idea.

A main idea is the author’s controlling point about the topic.  It usually includes the topic and the author’s attitude or opinion about the topic.  To identify the main idea, ask yourself:

• Who or what is the paragraph about?  The answer is the topic .  The topic can be stated in just a few words.
• What does the author think about the topic?  The answer is the  point. The point can also be stated in just a few words.

Once you’ve identified these pieces, you can combine them to state the author’s main idea in a single sentence.

Topic = the cool-down period

Point  = important parts of exercise workouts

The cool-down period is an important part of an exercise workout .

Topic + Point = Main Idea

Often, but not always, the main idea of a paragraph is written as that paragraph’s topic sentence .  A topic sentence is a single sentence that states the topic and words that qualify the topic by revealing the author’s opinion about the topic or the author’s approach to the topic and also reveal the author’s thought pattern or organizational strategy. When you’ve identified both the main idea and the thought pattern, you can identify the topic sentence.

Main Idea = The cool-down period is an important part of an exercise workout

Thought Pattern  = several reasons

The cool-down period is an important part of an exercise workout for several reasons .

Main Idea +    Thought Pattern = Topic Sentence

Placement of Main Ideas & Topic Sentences

General to specific.

The topic sentence is the one sentence that is general enough to include all the ideas in the paragraph.  Therefore, a topic sentence that begins a paragraph or appears within the first few sentences of a paragraph signals a move from general ideas to specific ideas.  

Specific to General to Specific

At times, an author begins a paragraph with details to stir the reader’s interest in the topic.  The flow of ideas moves from the specific to the general and back to the specific.

Specific to General

Sometimes, an author waits until the end of the paragraph to state the topic sentence and main idea.  This allows the details to build up to the main idea and is sometimes called “climactic order.”

Implicit Main Idea

Implied Main Idea

This is a main idea that is not stated directly but is strongly suggested by the supporting details in the passage.  Many paragraphs in college textbooks do not provide a topic sentence, instead using supporting details to imply the main idea.  To determine the implied main idea, look at:

• The supporting details : facts, examples, descriptions, and explanations given
• The author’s thought pattern
• The author’s purpose

Read the sample paragraph below:

Egypt’s pyramids are the oldest existing buildings in the world.  These ancient tombs are also among the world’s largest structures.  The largest pyramid stands taller than a 40-story building and covers an area greater than that of ten football fields.  More than 80 pyramids still exist, and their once-smooth limestone surfaces hide secret passageways and rooms.  The pyramids of ancient Egypt served a vital purpose: to protect the pharaoh’s bodies after death .  Each pyramid held not only the pharaoh’s preserved body , but also all the goods he would need in his life after death .  

1.The topic of the paragraph is pyramids

2.There are three groups of supporting details , discussing: age, size, and purpose

3.The author has organized the supporting details into “characteristics” or “traits” of the pyramids.

4.The author purpose seems to be trying to define a pyramid.

→ Implied Main Idea: Pyramids are structures with several distinctive traits.

Remember, the main idea must be broad enough to cover all the details in the paragraph without being so broad that it includes details not mentioned.  

By Vanessa Flora-Nakoski |  This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/.

To download this page as a PDF, click here:

Posted on 26 July, 2018 by McDaniel College Writing Center

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Paragraphs & topic sentences.

A paragraph is a series of sentences that are organized and coherent, and are all related to a single topic. Almost every piece of writing you do that is longer than a few sentences should be organized into paragraphs. This is because paragraphs show a reader where the subdivisions of an essay begin and end, and thus help the reader see the organization of the essay and grasp its main points.

Paragraphs can contain many different kinds of information. A paragraph could contain a series of brief examples or a single long illustration of a general point. It might describe a place, character, or process; narrate a series of events; compare or contrast two or more things; classify items into categories; or describe causes and effects. Regardless of the kind of information they contain, all paragraphs share certain characteristics. One of the most important of these is a topic sentence.

TOPIC SENTENCES

A well-organized paragraph supports or develops a single controlling idea, which is expressed in a sentence called the topic sentence. A topic sentence has several important functions: it substantiates or supports an essay’s thesis statement; it unifies the content of a paragraph and directs the order of the sentences; and it advises the reader of the subject to be discussed and how the paragraph will discuss it. Readers generally look to the first few sentences in a paragraph to determine the subject and perspective of the paragraph. That’s why it’s often best to put the topic sentence at the very beginning of the paragraph. In some cases, however, it’s more effective to place another sentence before the topic sentence—for example, a sentence linking the current paragraph to the previous one, or one providing background information.

Although most paragraphs should have a topic sentence, there are a few situations when a paragraph might not need a topic sentence. For example, you might be able to omit a topic sentence in a paragraph that narrates a series of events, if a paragraph continues developing an idea that you introduced (with a topic sentence) in the previous paragraph, or if all the sentences and details in a paragraph clearly refer—perhaps indirectly—to a main point. The vast majority of your paragraphs, however, should have a topic sentence.

PARAGRAPH STRUCTURE

Most paragraphs in an essay have a three-part structure—introduction, body, and conclusion. You can see this structure in paragraphs whether they are narrating, describing, comparing, contrasting, or analyzing information. Each part of the paragraph plays an important role in communicating your meaning to your reader.

Introduction : the first section of a paragraph; should include the topic sentence and any other sentences at the beginning of the paragraph that give background information or provide a transition.

Body : follows the introduction; discusses the controlling idea, using facts, arguments, analysis, examples, and other information.

Conclusion : the final section; summarizes the connections between the information discussed in the body of the paragraph and the paragraph’s controlling idea.

The following paragraph illustrates this pattern of organization. In this paragraph the topic sentence and concluding sentence (CAPITALIZED) both help the reader keep the paragraph’s main point in mind.

SCIENTISTS HAVE LEARNED TO SUPPLEMENT THE SENSE OF SIGHT IN NUMEROUS WAYS. In front of the tiny pupil of the eye they put , on Mount Palomar, a great monocle 200 inches in diameter, and with it see 2000 times farther into the depths of space. Or they look through a small pair of lenses arranged as a microscope into a drop of water or blood, and magnify by as much as 2000 diameters the living creatures there, many of which are among man’s most dangerous enemies. Or , if we want to see distant happenings on earth, they use some of the previously wasted electromagnetic waves to carry television images which they re-create as light by whipping tiny crystals on a screen with electrons in a vacuum. Or they can bring happenings of long ago and far away as colored motion pictures, by arranging silver atoms and color-absorbing molecules to force light waves into the patterns of original reality. Or if we want to see into the center of a steel casting or the chest of an injured child, they send the information on a beam of penetrating short-wave X rays, and then convert it back into images we can see on a screen or photograph. THUS ALMOST EVERY TYPE OF ELECTROMAGNETIC RADIATION YET DISCOVERED HAS BEEN USED TO EXTEND OUR SENSE OF SIGHT IN SOME WAY. George Harrison, “Faith and the Scientist”

In a coherent paragraph, each sentence relates clearly to the topic sentence or controlling idea, but there is more to coherence than this. If a paragraph is coherent, each sentence flows smoothly into the next without obvious shifts or jumps. A coherent paragraph also highlights the ties between old information and new information to make the structure of ideas or arguments clear to the reader.

Along with the smooth flow of sentences, a paragraph’s coherence may also be related to its length. If you have written a very long paragraph, one that fills a double-spaced typed page, for example, you should check it carefully to see if it should start a new paragraph where the original paragraph wanders from its controlling idea. On the other hand, if a paragraph is very short (only one or two sentences, perhaps), you may need to develop its controlling idea more thoroughly, or combine it with another paragraph.

A number of other techniques that you can use to establish coherence in paragraphs are described below.

Repeat key words or phrases. Particularly in paragraphs in which you define or identify an important idea or theory, be consistent in how you refer to it. This consistency and repetition will bind the paragraph together and help your reader understand your definition or description.

Create parallel structures. Parallel structures are created by constructing two or more phrases or sentences that have the same grammatical structure and use the same parts of speech. By creating parallel structures you make your sentences clearer and easier to read. In addition, repeating a pattern in a series of consecutive sentences helps your reader see the connections between ideas. In the paragraph above about scientists and the sense of sight, several sentences in the body of the paragraph have been constructed in a parallel way. The parallel structures (which have been emphasized ) help the reader see that the paragraph is organized as a set of examples of a general statement.

Be consistent in point of view, verb tense, and number. Consistency in point of view, verb tense, and number is a subtle but important aspect of coherence. If you shift from the more personal "you" to the impersonal “one,” from past to present tense, or from “a man” to “they,” for example, you make your paragraph less coherent. Such inconsistencies can also confuse your reader and make your argument more difficult to follow.

Use transition words or phrases between sentences and between paragraphs. Transitional expressions emphasize the relationships between ideas, so they help readers follow your train of thought or see connections that they might otherwise miss or misunderstand. The following paragraph shows how carefully chosen transitions (CAPITALIZED) lead the reader smoothly from the introduction to the conclusion of the paragraph.

I don’t wish to deny that the flattened, minuscule head of the large-bodied "stegosaurus" houses little brain from our subjective, top-heavy perspective, BUT I do wish to assert that we should not expect more of the beast. FIRST OF ALL, large animals have relatively smaller brains than related, small animals. The correlation of brain size with body size among kindred animals (all reptiles, all mammals, FOR EXAMPLE) is remarkably regular. AS we move from small to large animals, from mice to elephants or small lizards to Komodo dragons, brain size increases, BUT not so fast as body size. IN OTHER WORDS, bodies grow faster than brains, AND large animals have low ratios of brain weight to body weight. IN FACT, brains grow only about two-thirds as fast as bodies. SINCE we have no reason to believe that large animals are consistently stupider than their smaller relatives, we must conclude that large animals require relatively less brain to do as well as smaller animals. IF we do not recognize this relationship, we are likely to underestimate the mental power of very large animals, dinosaurs in particular. Stephen Jay Gould, “Were Dinosaurs Dumb?”

SOME USEFUL TRANSITIONS

(modified from Diana Hacker, A Writer’s Reference )

Produced by Writing Tutorial Services, Indiana University, Bloomington, IN

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What this handout is about

This handout will help you understand how paragraphs are formed, how to develop stronger paragraphs, and how to completely and clearly express your ideas.

What is a paragraph?

Paragraphs are the building blocks of papers. Many students define paragraphs in terms of length: a paragraph is a group of at least five sentences, a paragraph is half a page long, etc. In reality, though, the unity and coherence of ideas among sentences is what constitutes a paragraph. A paragraph is defined as “a group of sentences or a single sentence that forms a unit” (Lunsford and Connors 116). Length and appearance do not determine whether a section in a paper is a paragraph. For instance, in some styles of writing, particularly journalistic styles, a paragraph can be just one sentence long. Ultimately, a paragraph is a sentence or group of sentences that support one main idea. In this handout, we will refer to this as the “controlling idea,” because it controls what happens in the rest of the paragraph.

How do I decide what to put in a paragraph?

Before you can begin to determine what the composition of a particular paragraph will be, you must first decide on an argument and a working thesis statement for your paper. What is the most important idea that you are trying to convey to your reader? The information in each paragraph must be related to that idea. In other words, your paragraphs should remind your reader that there is a recurrent relationship between your thesis and the information in each paragraph. A working thesis functions like a seed from which your paper, and your ideas, will grow. The whole process is an organic one—a natural progression from a seed to a full-blown paper where there are direct, familial relationships between all of the ideas in the paper.

The decision about what to put into your paragraphs begins with the germination of a seed of ideas; this “germination process” is better known as brainstorming . There are many techniques for brainstorming; whichever one you choose, this stage of paragraph development cannot be skipped. Building paragraphs can be like building a skyscraper: there must be a well-planned foundation that supports what you are building. Any cracks, inconsistencies, or other corruptions of the foundation can cause your whole paper to crumble.

So, let’s suppose that you have done some brainstorming to develop your thesis. What else should you keep in mind as you begin to create paragraphs? Every paragraph in a paper should be :

• Unified : All of the sentences in a single paragraph should be related to a single controlling idea (often expressed in the topic sentence of the paragraph).
• Clearly related to the thesis : The sentences should all refer to the central idea, or thesis, of the paper (Rosen and Behrens 119).
• Coherent : The sentences should be arranged in a logical manner and should follow a definite plan for development (Rosen and Behrens 119).
• Well-developed : Every idea discussed in the paragraph should be adequately explained and supported through evidence and details that work together to explain the paragraph’s controlling idea (Rosen and Behrens 119).

How do I organize a paragraph?

There are many different ways to organize a paragraph. The organization you choose will depend on the controlling idea of the paragraph. Below are a few possibilities for organization, with links to brief examples:

• Narration : Tell a story. Go chronologically, from start to finish. ( See an example. )
• Description : Provide specific details about what something looks, smells, tastes, sounds, or feels like. Organize spatially, in order of appearance, or by topic. ( See an example. )
• Process : Explain how something works, step by step. Perhaps follow a sequence—first, second, third. ( See an example. )
• Classification : Separate into groups or explain the various parts of a topic. ( See an example. )
• Illustration : Give examples and explain how those examples support your point. (See an example in the 5-step process below.)

Illustration paragraph: a 5-step example

From the list above, let’s choose “illustration” as our rhetorical purpose. We’ll walk through a 5-step process for building a paragraph that illustrates a point in an argument. For each step there is an explanation and example. Our example paragraph will be about human misconceptions of piranhas.

Step 1. Decide on a controlling idea and create a topic sentence

Paragraph development begins with the formulation of the controlling idea. This idea directs the paragraph’s development. Often, the controlling idea of a paragraph will appear in the form of a topic sentence. In some cases, you may need more than one sentence to express a paragraph’s controlling idea.

Controlling idea and topic sentence — Despite the fact that piranhas are relatively harmless, many people continue to believe the pervasive myth that piranhas are dangerous to humans.

Step 2. Elaborate on the controlling idea

Paragraph development continues with an elaboration on the controlling idea, perhaps with an explanation, implication, or statement about significance. Our example offers a possible explanation for the pervasiveness of the myth.

Elaboration — This impression of piranhas is exacerbated by their mischaracterization in popular media.

Step 3. Give an example (or multiple examples)

Paragraph development progresses with an example (or more) that illustrates the claims made in the previous sentences.

Example — For example, the promotional poster for the 1978 horror film Piranha features an oversized piranha poised to bite the leg of an unsuspecting woman.

Step 4. Explain the example(s)

The next movement in paragraph development is an explanation of each example and its relevance to the topic sentence. The explanation should demonstrate the value of the example as evidence to support the major claim, or focus, in your paragraph.

Continue the pattern of giving examples and explaining them until all points/examples that the writer deems necessary have been made and explained. NONE of your examples should be left unexplained. You might be able to explain the relationship between the example and the topic sentence in the same sentence which introduced the example. More often, however, you will need to explain that relationship in a separate sentence.

Explanation for example — Such a terrifying representation easily captures the imagination and promotes unnecessary fear.

Notice that the example and explanation steps of this 5-step process (steps 3 and 4) can be repeated as needed. The idea is that you continue to use this pattern until you have completely developed the main idea of the paragraph.

Step 5. Complete the paragraph’s idea or transition into the next paragraph

The final movement in paragraph development involves tying up the loose ends of the paragraph. At this point, you can remind your reader about the relevance of the information to the larger paper, or you can make a concluding point for this example. You might, however, simply transition to the next paragraph.

Sentences for completing a paragraph — While the trope of the man-eating piranhas lends excitement to the adventure stories, it bears little resemblance to the real-life piranha. By paying more attention to fact than fiction, humans may finally be able to let go of this inaccurate belief.

Finished paragraph

Despite the fact that piranhas are relatively harmless, many people continue to believe the pervasive myth that piranhas are dangerous to humans. This impression of piranhas is exacerbated by their mischaracterization in popular media. For example, the promotional poster for the 1978 horror film Piranha features an oversized piranha poised to bite the leg of an unsuspecting woman. Such a terrifying representation easily captures the imagination and promotes unnecessary fear. While the trope of the man-eating piranhas lends excitement to the adventure stories, it bears little resemblance to the real-life piranha. By paying more attention to fact than fiction, humans may finally be able to let go of this inaccurate belief.

Troubleshooting paragraphs

Problem: the paragraph has no topic sentence.

Imagine each paragraph as a sandwich. The real content of the sandwich—the meat or other filling—is in the middle. It includes all the evidence you need to make the point. But it gets kind of messy to eat a sandwich without any bread. Your readers don’t know what to do with all the evidence you’ve given them. So, the top slice of bread (the first sentence of the paragraph) explains the topic (or controlling idea) of the paragraph. And, the bottom slice (the last sentence of the paragraph) tells the reader how the paragraph relates to the broader argument. In the original and revised paragraphs below, notice how a topic sentence expressing the controlling idea tells the reader the point of all the evidence.

Original paragraph

Piranhas rarely feed on large animals; they eat smaller fish and aquatic plants. When confronted with humans, piranhas’ first instinct is to flee, not attack. Their fear of humans makes sense. Far more piranhas are eaten by people than people are eaten by piranhas. If the fish are well-fed, they won’t bite humans.

Revised paragraph

Although most people consider piranhas to be quite dangerous, they are, for the most part, entirely harmless. Piranhas rarely feed on large animals; they eat smaller fish and aquatic plants. When confronted with humans, piranhas’ first instinct is to flee, not attack. Their fear of humans makes sense. Far more piranhas are eaten by people than people are eaten by piranhas. If the fish are well-fed, they won’t bite humans.

Once you have mastered the use of topic sentences, you may decide that the topic sentence for a particular paragraph really shouldn’t be the first sentence of the paragraph. This is fine—the topic sentence can actually go at the beginning, middle, or end of a paragraph; what’s important is that it is in there somewhere so that readers know what the main idea of the paragraph is and how it relates back to the thesis of your paper. Suppose that we wanted to start the piranha paragraph with a transition sentence—something that reminds the reader of what happened in the previous paragraph—rather than with the topic sentence. Let’s suppose that the previous paragraph was about all kinds of animals that people are afraid of, like sharks, snakes, and spiders. Our paragraph might look like this (the topic sentence is bold):

Like sharks, snakes, and spiders, piranhas are widely feared. Although most people consider piranhas to be quite dangerous, they are, for the most part, entirely harmless . Piranhas rarely feed on large animals; they eat smaller fish and aquatic plants. When confronted with humans, piranhas’ first instinct is to flee, not attack. Their fear of humans makes sense. Far more piranhas are eaten by people than people are eaten by piranhas. If the fish are well-fed, they won’t bite humans.

Problem: the paragraph has more than one controlling idea

If a paragraph has more than one main idea, consider eliminating sentences that relate to the second idea, or split the paragraph into two or more paragraphs, each with only one main idea. Watch our short video on reverse outlining to learn a quick way to test whether your paragraphs are unified. In the following paragraph, the final two sentences branch off into a different topic; so, the revised paragraph eliminates them and concludes with a sentence that reminds the reader of the paragraph’s main idea.

Although most people consider piranhas to be quite dangerous, they are, for the most part, entirely harmless. Piranhas rarely feed on large animals; they eat smaller fish and aquatic plants. When confronted with humans, piranhas’ first instinct is to flee, not attack. Their fear of humans makes sense. Far more piranhas are eaten by people than people are eaten by piranhas. A number of South American groups eat piranhas. They fry or grill the fish and then serve them with coconut milk or tucupi, a sauce made from fermented manioc juices.

Problem: transitions are needed within the paragraph

You are probably familiar with the idea that transitions may be needed between paragraphs or sections in a paper (see our handout on transitions ). Sometimes they are also helpful within the body of a single paragraph. Within a paragraph, transitions are often single words or short phrases that help to establish relationships between ideas and to create a logical progression of those ideas in a paragraph. This is especially likely to be true within paragraphs that discuss multiple examples. Let’s take a look at a version of our piranha paragraph that uses transitions to orient the reader:

Although most people consider piranhas to be quite dangerous, they are, except in two main situations, entirely harmless. Piranhas rarely feed on large animals; they eat smaller fish and aquatic plants. When confronted with humans, piranhas’ instinct is to flee, not attack. But there are two situations in which a piranha bite is likely. The first is when a frightened piranha is lifted out of the water—for example, if it has been caught in a fishing net. The second is when the water level in pools where piranhas are living falls too low. A large number of fish may be trapped in a single pool, and if they are hungry, they may attack anything that enters the water.

In this example, you can see how the phrases “the first” and “the second” help the reader follow the organization of the ideas in the paragraph.

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.

Lunsford, Andrea. 2008. The St. Martin’s Handbook: Annotated Instructor’s Edition , 6th ed. New York: St. Martin’s.

Rosen, Leonard J., and Laurence Behrens. 2003. The Allyn & Bacon Handbook , 5th ed. New York: Longman.

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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