We have examined different types or modes of composing expository essays. As each essay has a different purpose, we now need to look further at how to construct paragraphs according to the purpose, audience, and tone of writing. It is important keep the big picture thesis in mind when writing, and to question whether the information supports that thesis. As well, while thinking of how each supporting idea links back to that thesis, it is necessary to consider the purpose of the paragraphs. Should a paragraph be summary, analysis, synthesis, or evaluation to best support the thesis and essay mode? How will that purpose affect paragraph construction?

Three elements shape the content of each paragraph:

• Purpose. The reason the writer composes the paragraph.
• Tone. The attitude the writer conveys about the paragraph’s subject.
• Audience. The individual or group whom the writer intends to address.

Figure 4.2: Purpose, Audience, Tone, and Content Triangle illustrates this concept.

The assignment’s purpose, audience, and tone dictate what the paragraph covers and how it will support one main point. This section covers how purpose, audience, and tone affect reading and writing paragraphs.

Identifying Common Academic Purposes

The purpose is simply the reason you are writing a particular document. Basically, the purpose of a piece of writing answers the question “why?” For example, why write a play? To entertain a packed theatre. Why write instructions to the babysitter? To inform him or her of your schedule and rules. Why write a letter to your Member of Parliament? To persuade him or her to address your community’s needs.

In academic settings, the reasons for writing fulfill four main purposes: to summarize, to analyze, to synthesize, and to evaluate. You will encounter these four purposes not only as you read for your classes but also as you read for work or pleasure. Because reading and writing work together, your writing skills will improve as you read.

Eventually, your instructors will ask you to complete assignments specifically designed to meet one of the four purposes. As you will see, the purpose for writing will guide you through each part of the paper, helping you make decisions about content and style. For now, identifying these purposes by reading paragraphs will prepare you to write individual paragraphs and to build longer assignments.

Summary Paragraphs

We have already seen a sample of a summary paragraph in Section 3.2: Summarizing. Take a look back at the summary paragraph in that section to refresh your memory on what this type of paragraph should contain.

Analysis Paragraphs

An analysis separates complex materials into their different parts and studies how the parts relate to one another. The analysis of simple table salt, for example, would require a deconstruction of its parts—the elements sodium (Na) and chloride (Cl). Then, scientists would study how the two elements interact to create the compound NaCl, or sodium chloride, which is also called simple table salt.

Analysis is not limited to the sciences, of course. An analysis paragraph in academic writing fulfills the same purpose. Instead of deconstructing chemical compounds, academic analysis paragraphs typically deconstruct documents. An analysis takes apart a primary source (an essay, a book, an article, etc.) point by point. It communicates the main points of the document by examining individual points and identifying how they relate to one another.

Take a look at a student’s analysis of the journal report.

Notice how the analysis does not simply repeat information from the original report, but considers how the points within the report relate to one another. By doing this, the student uncovers a discrepancy between the points that are backed up by statistics and those that require additional information. Analyzing a document involves a close examination of each of the individual parts and how they work together.

Synthesis Paragraphs

A synthesis combines two or more items to create an entirely new item. Consider the electronic musical instrument aptly named the synthesizer. It looks like a simple keyboard but displays a dashboard of switches, buttons, and levers. With the flip of a few switches, a musician may combine the distinct sounds of a piano, a flute, or a guitar—or any other combination of instruments—to create a new sound. The purpose of the synthesizer is to blend together the notes from individual instruments to form new, unique notes.

The purpose of an academic synthesis is to blend individual documents into a new document. An academic synthesis paragraph considers the main points from one or more pieces of writing and links the main points together to create a new point, one not replicated in either document.

Take a look at a student’s synthesis of several sources about underage drinking.

Notice how the synthesis paragraphs consider each source and use information from each to create a new thesis. A good synthesis does not repeat information; the writer uses a variety of sources to create a new idea.

Evaluation Paragraphs

An evaluation judges the value of something and determines its worth. Evaluations in everyday experiences are often not only dictated by set standards but are also influenced by opinion and prior knowledge. For example, at work, a supervisor may complete an employee evaluation by judging his subordinate’s performance based on the company’s goals. If the company focuses on improving communication, the supervisor will rate the employee’s customer service according to a standard scale. However, the evaluation still depends on the supervisor’s opinion and prior experience with the employee. The purpose of the evaluation is to determine how well the employee performs on the job.

An academic evaluation communicates your opinion, and its justifications, about a document or a topic of discussion. Evaluations are influenced by your reading of the document, your prior knowledge, and your prior experience with the topic or issue. Because an evaluation incorporates your point of view and the reasons for your point of view, it typically requires more critical thinking and a combination of summary, analysis, and synthesis skills. Thus evaluation paragraphs often follow summary, analysis, and synthesis paragraphs. Read a student’s evaluation paragraph.

Notice how the paragraph incorporates the student’s personal judgment within the evaluation. Evaluating a document requires prior knowledge that is often based on additional research.

Writing at Work

Thinking about the purpose of writing a report in the workplace can help focus and structure the document. A summary should provide colleagues with a factual overview of your findings without going into too much detail. In contrast, an evaluation should include your personal opinion, along with supporting evidence, research, or examples to back it up. Listen for words such as summarize, analyze, synthesize, or evaluate when your boss asks you to complete a report to help determine a purpose for writing.

Identifying the Audience

Imagine you must give a presentation to a group of executives in an office. Weeks before the big day, you spend time creating and rehearsing the presentation. You must make important, careful decisions not only about the content but also about your delivery. Will the presentation require technology to project figures and charts? Should the presentation define important words, or will the executives already know the terms? Should you wear your suit and dress shirt? The answers to these questions will help you develop an appropriate relationship with your audience, making them more receptive to your message.

Now imagine you must explain the same business concepts from your presentation to a group of high school students. Those important questions you previously answered may now require different answers. The figures and charts may be too sophisticated, and the terms will certainly require definitions. You may even reconsider your outfit and sport a more casual look. Because the audience has shifted, your presentation and delivery will shift as well to create a new relationship with the new audience.

In these two situations, the audience—the individuals who will watch and listen to the presentation—plays a role in the development of presentation. As you prepare the presentation, you visualize the audience to anticipate their expectations and reactions. What you imagine affects the information you choose to present and how you will present it. Then, during the presentation, you meet the audience in person and discover immediately how well you perform.

Although the audience for writing assignments—your readers—may not appear in person, they play an equally vital role. Even in everyday writing activities, you identify your readers’ characteristics, interests, and expectations before making decisions about what you write. In fact, thinking about audience has become so common that you may not even detect the audience driven decisions.

For example, you update your status on a social networking site with the awareness of who will digitally follow the post. If you want to brag about a good grade, you may write the post to please family members. If you want to describe a funny moment, you may write with your friends’ sense of humour in mind. Even at work, you send emails with an awareness of an unintended receiver who could intercept the message.

In other words, being aware of “invisible” readers is a skill you most likely already possess and one you rely on every day. Consider the following paragraphs. Which one would the author send to her parents? Which one would she send to her best friend?

Most likely, you matched each paragraph to its intended audience with little hesitation. Because each paragraph reveals the author’s relationship with her intended readers, you can identify the audience fairly quickly. When writing your own paragraphs, you must engage with your audience to build an appropriate relationship given your subject. Imagining your readers during each stage of the writing process will help you make decisions about your writing. Ultimately, the people you visualize will affect what and how you write.

Similarly, grammar and sentence structure serve as the appearance of a piece of writing. Polishing your work using correct grammar will impress your readers and allow them to focus on what you have to say.

Because focusing on audience will enhance your writing, your process, and your finished product, you must consider the specific traits of your audience members. Use your imagination to anticipate the readers’ demographics, education, prior knowledge, and expectations.

Demographics: These measure important data about a group of people, such as their age range, ethnicity, religious beliefs, or gender. Certain topics and assignments will require you to consider these factors as they relate to your audience. For other topics and assignments, these measurements may not influence your writing. Regardless, it is important to consider demographics when you begin to think about your purpose for writing.

Education: Education considers the audience’s level of schooling. If audience members have earned a doctorate degree, for example, you may need to elevate your style and use more formal language. Or, if audience members are still in college, you could write in a more relaxed style. An audience member’s major or emphasis may also dictate your writing.

Prior knowledge: Prior knowledge is what the audience already knows about your topic. If your readers have studied certain topics, they may already know some terms and concepts related to the topic. You may decide whether to define terms and explain concepts based on your audience’s prior knowledge. Although you cannot peer inside the brains of your readers to discover their knowledge, you can make reasonable assumptions. For instance, a nursing major would presumably know more about health-related topics than a business major would.

Expectations: These indicate what readers will look for while reading your assignment. Readers may expect consistencies in the assignment’s appearance, such as correct grammar and traditional formatting like double-spaced lines and a legible font. Readers may also have content-based expectations given the assignment’s purpose and organization. In an essay titled “The Economics of Enlightenment: The Effects of Rising Tuition,” for example, audience members may expect to read about the economic repercussions of post-secondary tuition costs.