Background Information Expository Essay

Expository Essays

Summary:

The Modes of Discourse—Exposition, Description, Narration, Argumentation (EDNA)—are common paper assignments you may encounter in your writing classes. Although these genres have been criticized by some composition scholars, the Purdue OWL recognizes the wide spread use of these approaches and students’ need to understand and produce them.

Contributors: Jack Baker, Allen Brizee, Elizabeth Angeli
Last Edited: 2013-03-11 10:04:15

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.

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:

  1. an introductory paragraph
  2. three evidentiary body paragraphs
  3. a conclusion

Exposition is explanatory communication, whether in speech or writing. So an expository essay is an organized piece of prose which explains a specific topic or set of ideas to a defined audience. Expository essays include those written for exams or for standardized tests like the SAT. They may also be assignments composed outside of class.

Expository essays provide information and analysis. An expository essay may or may not have an overt central argument, though it does set forth points of view on the topic. It differs from the persuasive research paper in the level of research and argument it employs. While an expository essay should be focused on a particular topic and illustrate its points with specific examples, it doesn’t usually have the depth of research or argument that you need in a major research assignment. With an exam or a standardized test, for instance, the examples you use to support your points will be based on the knowledge already inside your head.

What Are the Elements of an Expository Essay?

An expository essay does have certain baseline requirements that are standard in nearly every essay type:

  • A clear thesis or controlling idea that establishes and sustains your focus.
  • An opening paragraph that introduces the thesis.
  • Body paragraphs that use specific evidence to illustrate your informative or analytic points.
  • Smooth transitions that connect the ideas of adjoining paragraphs in specific, interesting ways.
  • A conclusion that emphasizes your central idea without being repetitive.

How Do You Write an Expository Essay?

One common formula for the expository essay is the 5-Paragraph Essay. If you don’t have much experience with essay writing, this is a good method to start with, since it’s basic and straightforward. The 5-Paragraph Essay incorporates the elements listed above in the following basic structure:

  1. Introductory paragraph with a clear, concise thesis.
  2. Three body paragraphs that offer evidence and analysis connecting that evidence to the thesis.
  3. A concluding paragraph that sums up the paper by reevaluating the thesis in light of the evidence discussed in the essay’s body.

While the 5-paragraph structure gives you a helpful formula to work with, it’s only one among many valid options, and its suitability will depend on other factors like the length and complexity of your essay. If you’re writing a paper that’s more than 3 or 4 pages long, it should be more than 5 paragraphs. In most cases, the structure of a longer essay will be similar to that of the 5-paragraph essay, with an introduction, a conclusion and body paragraphs performing the same basic functions—only the number of body paragraphs will increase. The length of the paragraphs may also increase slightly in proportion to the length of the essay.

 

Composing an Expository Essay: A Process Guide

  • Begin by reading the assignment carefully to make sure you understand it. Then find a topic that fits the assignment. It’s important that you narrow your topic so that it’s directly relevant to the assignment. But make sure your topic is not so narrow that it lacks significance.
  • Start a brief outline by writing a tentative thesis statement that addresses the assignment prompt. Try to come up with an interesting, original perspective on your topic, and word the thesis so that it reflects that originality.
  • Think of specific examples you can use to illustrate your major points about your topic. These examples may come from your learning or from personal experience. Each example should have some clear connection to your central idea.
  • Your essay should devote one body paragraph to each of your major examples. So continue your outline by writing a topic sentence about each major example for each of your body paragraphs. Since the topic sentence will be part of each paragraph transition, it should make a clear, logical connection between your thesis and the evidence that paragraph will discuss.
  • Complete your outline by thinking of an interesting, meaningful way to end the essay. Remember that the conclusion should sum up your central points without merely repeating what you’ve said earlier. You might suggest the larger implications of what the essay has discussed and analyzed. One way to do this is to offer a concise review of what you’ve covered combined with a forecast or recommendations for the future.
  • If this is an assignment that you’re completing at home rather than in a timed exam, you might want to experiment with writing the body paragraphs before you write your introduction. The details of analysis in the body of the paper often help you to determine more precisely how to word your thesis and the way you introduce it in your opening paragraph.
  • Your essay should perform several of the following tasks that overlap and merge smoothly with each other:
    • Define your key terms or ideas.
    • Describe specific evidential examples.
    • Investigate the common thread among your examples.
    • Compare and contrast your examples and their relation to your thesis.
    • Analyze cause-and-effect relationships among your examples.
    • Connect your examples explicitly to your central idea and to each other.
    • Polish your essay through revision to make it artful, original, and interesting. Avoid clichéd language or the most obvious examples. You want your reader to learn something new and compelling, whether it’s an unusual fact or a novel perspective on your topic.

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