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:
- an introductory paragraph
- three evidentiary body paragraphs
- a conclusion
APA Paper Formatting & Style Guidelines
Your teacher may want you to format your paper using APA guidelines. If you were told to create your citations in APA format, your paper should be formatted using the APA guidelines as well.
- Use white 8 ½ x 11” paper.
- Make 1 inch margins on the top, bottom, and sides
- The first word in every paragraph should be indented one half inch.
- APA recommends using Times New Roman font, size 12.
- Double space the entire research paper
- Include a page header known as the “running head” at the top of every page. (To make this process easier, set your word processor to automatically add these components onto each page)
- To create the running head/page header, insert page numbers justified to the right-hand side of the paper (do not put p. or pg. in front of page numbers)
- Then type “TITLE OF YOUR PAPER” justified to the left using all capital letters
- If your title is long, this running head title should be a shortened version of the title of your entire paper
Sample running head/page header
APA Paper Components
Your essay should include these four major sections:
- Title Page
- Main Body
This page should contain four pieces: the title of the paper, running head, the author’s name, institutional affiliation, and an author’s note. Create the page header/running head as described above.
*Please note that only on the title page, your page header/running head should include the words “Running Head” before your title in all capitals. The rest of the pages should not include this in the page header. It should look like this on the title page:
- The title of the paper should capture the main idea of the essay but should not contain abbreviations or words that serve no purpose
- It should be centered on the page and typed in 12-point Times New Roman font. Do not underline, bold, or italicize the title.
- Your title may take up one or two lines, but should not be more than 12 words in length.
- All text on the title page should be double-spaced in the same way as the rest of your essay
- Do not include any titles on the author’s name such as Dr. or Ms.
- The institutional affiliation is the location where the author conducted the research
Sample Title page:
On the following page, begin with the Running title.
- On the first line of the page, center the word “Abstract” (but do not include quotation marks).
- On the following line, write a summary of the key points of your research. Your abstract summary is a way to introduce readers to your research topic, the questions that will be answered, the process you took, and any findings or conclusions you drew.
- This summary should not be indented, but should be double-spaced and less than 250 words.
- If applicable, help researchers find your work in databases by listing keywords from your paper after your summary. To do this, indent and type Keywords: in italics. Then list your keywords that stand out in your research.
Sample Abstract page:
On the following page, begin with the Body of the paper.
- Start with the Running title
- On the next line write the title (do not bold, underline, or italicize the title)
- Begin with the introduction. Indent.
- The introduction presents the problem and premise upon which the research was based. It goes into more detail about this problem than the abstract.
- Begin a new section with the Method. Bold and center this subtitle The Method section shows how the study was run and conducted. Be sure to describe the methods through which data was collected.
- Begin a new section with the Results. Bold and center this subtitle. The Results section summarizes the data. Use graphs and graphs to display this data.
- Begin a new section with the Discussion. Bold and center this subtitle. This Discussion section is a chance to analyze and interpret your results.
- Draw conclusions and support how your data led to these conclusions.
- Discuss whether or not your hypothesis was confirmed or not supported by your results.
- Determine the limitations of the study and next steps to improve research for future studies.
** Throughout the body, in-text citations are used and include the author’s/authors’ name(s) and the publication year. In APA format page numbers are not used in in-text citations.
Ex: (Wilkonson, 2009).
For more information about how to cite properly please see EasyBib’s guides for APA citations based on the sources you are using.
Sample Body page:
On a new page, write your references.
- Begin with a running title
- Center and bold the title “References” (do not include quotation marks, underline, or italicize this title)
- Alphabetize and Double-space all entries
- Every article/source mentioned in the paper and used in your study should be referenced and have an entry.
Sample Reference Page: