expository essay structure map

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Expository Essays

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What is an expository essay?

The expository essay is a genre of essay that requires the student to investigate an idea, evaluate evidence, expound on the idea, and set forth an argument concerning that idea in a clear and concise manner. This can be accomplished through comparison and contrast, definition, example, the analysis of cause and effect, etc.

Please note : This genre is commonly assigned as a tool for classroom evaluation and is often found in various exam formats.

The structure of the expository essay is held together by the following.

• A clear, concise, and defined thesis statement that occurs in the first paragraph of the essay.

It is essential that this thesis statement be appropriately narrowed to follow the guidelines set forth in the assignment. If the student does not master this portion of the essay, it will be quite difficult to compose an effective or persuasive essay.

• Clear and logical transitions between the introduction, body, and conclusion.

Transitions are the mortar that holds the foundation of the essay together. Without logical progression of thought, the reader is unable to follow the essay’s argument, and the structure will collapse.

• Body paragraphs that include evidential support.

Each paragraph should be limited to the exposition of one general idea. This will allow for clarity and direction throughout the essay. What is more, such conciseness creates an ease of readability for one’s audience. It is important to note that each paragraph in the body of the essay must have some logical connection to the thesis statement in the opening paragraph.

• Evidential support (whether factual, logical, statistical, or anecdotal).

Often times, students are required to write expository essays with little or no preparation; therefore, such essays do not typically allow for a great deal of statistical or factual evidence.

• A bit of creativity!

Though creativity and artfulness are not always associated with essay writing, it is an art form nonetheless. Try not to get stuck on the formulaic nature of expository writing at the expense of writing something interesting. Remember, though you may not be crafting the next great novel, you are attempting to leave a lasting impression on the people evaluating your essay.

• A conclusion that does not simply restate the thesis, but readdresses it in light of the evidence provided.

It is at this point of the essay that students will inevitably begin to struggle. This is the portion of the essay that will leave the most immediate impression on the mind of the reader. Therefore, it must be effective and logical. Do not introduce any new information into the conclusion; rather, synthesize and come to a conclusion concerning the information presented in the body of the essay.

A complete argument

Perhaps it is helpful to think of an essay in terms of a conversation or debate with a classmate. If I were to discuss the cause of the Great Depression and its current effect on those who lived through the tumultuous time, there would be a beginning, middle, and end to the conversation. In fact, if I were to end the exposition in the middle of my second point, questions would arise concerning the current effects on those who lived through the Depression. Therefore, the expository essay must be complete, and logically so, leaving no doubt as to its intent or argument.

The five-paragraph Essay

A common method for writing an expository essay is the five-paragraph approach. This is, however, by no means the only formula for writing such essays. If it sounds straightforward, that is because it is; in fact, the method consists of:

• an introductory paragraph
• three evidentiary body paragraphs
• a conclusion

About this Interactive

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Writing Guides  /  How to Write an Expository Essay (Professor Approved Guide)

How to Write an Expository Essay (Professor Approved Guide)

What is an expository essay? Expository essays are essentially informative essays. They are intended to be neutral, presenting facts so the reader can draw their own conclusions. They require the writer to extensively research the topic, determine the most essential points, and give those facts to the reader logically and cohesively. In fact, the role of research in an expository essay is vital. You may also hear people call them research papers since they depend on you doing research and presenting the research results to the reader.

Not surprisingly, one of the most significant risks when writing an expository essay is that you will go down a rabbit hole. It is easy to begin researching a topic, find a fascinating element, and put too much emphasis on that element. You want to avoid that and present a comprehensive overview of your subject matter.

Many students begin college knowing how to write an expository essay. In fact, most K-12 education emphasizes the expository essay over other types of writing. They are easy to structure and help the writer research and learn more about a topic. No wonder they are a favorite essay type for educators everywhere. Plus, the skills you learn when writing an expository essay can translate to other kinds of writing.

How to Write an Expository Essay Step by Step?

There are seven basic steps to writing an expository essay

• Thesis Statement
• Introduction
• Body Paragraphs

Including these steps while writing your essay is one of the best ways to ensure you meet your professor’s expectations.

Step One: Research Your Topic

An expository essay starts with research. You need to understand the topic before you write about it. You also need to understand what points the reader needs to know to comprehend the subject. The internet has been outstanding in terms of helping people get access to information. Unfortunately, it has also increased your likelihood of being exposed to misinformation. For an expository essay, you want to present unbiased sources. After all, you are supposed to be neutrally presenting information.

Reliable sources generally are

• Use citations for their source material
• Written by experts

Not sure where to start? Your university may have access to databases of academic research. Contact your library’s helpdesk or student writing center to ask about those resources. If not, you can use Google for your research. However, you do not want to do a standard Google search. Instead, you want to use a function called Google Scholar .  You can search academic articles, textbooks, and other academic sources there. It is an excellent place to begin your research.

You may be tempted to use Wikipedia for your research. Some schools have rules against citing Wikipedia in your research since anyone can edit it, and it is not peer-reviewed. For those reasons, it is not a great source to note in your paper. However, if you do not understand a topic, Wikipedia can be a good starting place to learn more information. Some of the better Wikipedia articles have significant citation sections, which can be a good starting place for academic research. So, if you are lost, check out the scholarly articles in those citations.

While research is typically the first step of an expository essay, there are some circumstances where you may not be conducting research. You may be asked to write an expository essay for an exam. In those instances, you will not be conducting outside research. Instead, the research will have occurred as part of your classroom learning. Your essay must synthesize that information to demonstrate what you have learned. Since research usually is the start of an expository essay, you may feel a little lost. However, as long as you remember that classroom learning takes the place of outside research for these essays, it should be easier to understand them.

Step Two: Write a Thesis Statement

The next step is to write your thesis statement. While we have this as step two, some people write their thesis statement after writing the essay’s body. It would help if you did whichever one works best for you.

Your thesis statement should let the reader know what to expect in your essay. It is the main argument that you are supporting with your paper. Writing a thesis is easy for articles where you take a position. However, it is more difficult for expository essays, where you are presenting a neutral account of the information.

Your thesis statement should be confident, strong, and clear and provide the reader with the expectations for the essay. In many ways, it is a thumbnail version of the report. However, your thesis statement should not contain facts. A statement of fact is not a thesis. Instead, it should have a central idea or ideas that the facts you present will support.

While you want to start your essay with a thesis in mind, think of your initial thesis as a rough draft. As you write your essay, you may need to revise the thesis. You want the paper to support the thesis. If you are not supporting the thesis, you need to change the content of your body paragraphs or revise your thesis statement.

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Step Three: Pick a Structure for the Essay

Once you have determined what you want your essay to say, which is your thesis statement, you need to determine how you will present it. The five-paragraph essay is the default way to give information in an expository essay. This standard essay begins with an introduction, contains three supporting body paragraphs, and ends with a conclusion. Need additional support? No problem- you add those in as additional body paragraphs. If your expository essay is longer, you might consider breaking it down into smaller versions of the five-paragraph paper, with each mini-essay supporting one of the points you make in the outline.

Step Four: Write an Outline

Next, we suggest writing an outline. This may or may not be an essential step for you. Some writers can tackle their essays without writing an outline. However, an outline provides an excellent skeleton if you are struggling to write your essay. A thorough outline will provide a complete roadmap, so you must flesh it out to complete your paper.

Assuming that you have selected the five-paragraph format, your outline should look like this:

I. Introduction

A. Supporting Fact 1

B. Supporting Fact 2

C. Supporting Fact 3

D. Thesis Statement

II. Supporting Fact 1

A. Evidence

B. Evidence

C. Evidence

III. Supporting Fact 2

IV. Supporting Fact 3

V. Conclusion

A. Restate Thesis

B. Restate Supporting Fact 1

C. Restate Supporting Fact 2

D. Restate Supporting Fact 3

E. Concluding Sentence

Step Five: Write the Introductory Paragraph

Wondering how to start an expository essay? Once you have written your outline, you know what your introductory paragraph should look like. The first sentence should introduce the topic. The next three or so sentences should preview the body paragraphs. The final sentence or two should be your thesis statement.

One of the essential parts of your introductory paragraph is the hook. The hook is a sentence or two that captures the reader’s attention and makes them want to continue reading your essay.

Step Six: Write the Body Paragraphs

Your next step is to write your body paragraphs. Your introductory paragraph and outline have already provided the subject of your body paragraphs. Now, you need to fill in two to three facts to support the topic of each body paragraph.

In the body paragraphs, you put the research you did back into the paper. They are where you include quotes, figures, and cited facts. Remember, the body paragraphs are there to provide supporting evidence for the claims that you have made in the introductory paragraph. They should be thorough, but they should also be concise. Review them critically to ensure that you have stayed on topic.

Step Seven: Write the Conclusion

This is the easiest step in writing your paper. Your conclusion will essentially be a flipped version of your introductory paragraph. Start by restating your thesis. Next, summarize the supporting facts that you used in your introductory paragraph. Finally, you will end with a concluding statement. The type of concluding statement you use will depend on the nature of your expository essay.

Expository Essay Topics

Because expository essays are informative, you can choose almost any topic for your paper, as long as you explain or describe it. Remember that you do not want to be persuasive or argumentative. Even if you explain why you like something, your goal is not to get the reader to agree with you but to get the reader to understand you.

Some ideas to consider

• How dogs (or other animals) became domesticated.
• Why rural areas tend to be more conservative than cities.
• The impact of climate change on coastal areas.
• Why eating in a calorie deficit is necessary for fat loss.
• Reasons for the rise in Autism rates.

Expository Essay Writing Frequently Asked Questions (FAQ)

How do you start an expository essay.

You start an expository essay with research. You need to thoroughly understand the topic before you can explain it to someone else.

What is an example of an expository essay?

One of the most common examples of expository writing is news articles. These articles are objective and provide facts to the reader.

What are the 5 parts of an expository essay?

Suppose you use the five-paragraph model for your expository essay. In that case, the five parts of the paper are the introduction, body paragraph 1, body paragraph 2, body paragraph 3, and the conclusion.

What is a good expository essay topic?

Picking the right topic depends on what type of expository essay you are writing. Expository essays include

• Compare and Contrast
• Descriptive
• Cause and Effect
• Problem and Solution

So, use the subtype of the essay to guide your topic selection.

Need help writing your expository essay? Check out our writing tools for writing an expository essay today!

Take the first step to becoming a better academic writer.

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