Why Do We Study Arguments in Nonfiction?
People have been trying to persuade one another for thousands of years. Long before there were social-media posts or news websites, speakers and writers crafted arguments (reasons designed to convince you of something). Understanding how arguments work has always been an important skill. Here is a quick look at how the study of persuasion developed over time.
Today, you encounter arguments everywhere: in speeches, memoirs, essays, science articles, and opinion columns. The standard you are learning asks you to trace an argument (follow it step by step), evaluate the claims (decide if they make sense), and assess whether the evidence is relevant and sufficient (enough to actually prove the point). Let's see how to do all of that.
Core Principles & Definitions
Before you can evaluate an argument, you need to know the key vocabulary. Here are the five building blocks you will use throughout this lesson.
Literary Nonfiction
Argument
Claim
Evidence
Reasoning
Visual Explanation — Anatomy of an Argument
The diagram below shows how the parts of an argument fit together. Start at the top with the author's central claim, then follow the arrows down through the supporting claims, evidence, and reasoning. Notice how each layer supports the one above it, like floors in a building.
When you read literary nonfiction, you are doing the work shown at the very bottom of this diagram. You start by finding the central claim, then you identify the evidence, and finally you ask yourself: Does this evidence actually prove the claim? Is there enough of it? Is it related to the topic? That is exactly what it means to "trace and evaluate" an argument.
How It Works — A Step-by-Step Process
Here is a simple four-step process you can follow every time you read a piece of literary nonfiction and need to analyze its argument. You can remember these steps with the acronym C-E-R-J: Claim, Evidence, Reasoning, Judgment.
Step 1 — Identify the Claim
Ask: "What is the author trying to convince me of?" The claim is often found in the introduction or conclusion. Sometimes it is repeated throughout the text. Underline or highlight it.
Step 2 — Find the Evidence
Look for the facts, examples, data, quotations, or personal stories the author uses to support the claim. Mark each piece of evidence you find. Then ask two important questions about each one:
- Is it relevant? Does this evidence actually relate to the claim?
- Is it sufficient? Is there enough evidence, or does the author need more?
Step 3 — Examine the Reasoning
Reasoning is the glue that holds the claim and evidence together. Check whether the author explains why the evidence matters. If the author jumps from evidence to conclusion without explaining the connection, the reasoning has a gap.
Step 4 — Make Your Judgment
Finally, decide: Is the argument convincing? You might agree completely, agree partially, or disagree. The key is to support your judgment with specific details from the text. This is where your writing comes in—you explain what you found using evidence from the passage.
Types of Evidence & How to Evaluate Them
Not all evidence is created equal. Authors of literary nonfiction use many different kinds of evidence. The flowchart below will help you decide how strong each type is.
As you can see, every type of evidence comes with its own set of questions you should ask. Statistics can be powerful, but only if they come from a trustworthy source. Personal stories can be moving, but one person's experience does not always prove a general point. The smartest readers check every piece of evidence before deciding whether to accept the author's argument.
| Evidence Type | Example | Key Question | Potential Weakness |
|---|---|---|---|
| Statistics | "78% of teens surveyed said…" | Where did the numbers come from? | Small sample size, biased survey |
| Expert Quotes | "Dr. Chen, a marine biologist, states…" | Is the expert qualified in this field? | Expert may be outside their area |
| Personal Stories | "When I was twelve, I…" | Can one story represent everyone? | May not generalize to all cases |
| Historical Examples | "During the Great Depression…" | Is this past event truly comparable? | Circumstances may have changed |
| Logical Reasoning | "If X causes Y, and we see Y, then X must be present." | Does the logic actually hold up? | May contain a logical fallacy |
Worked Example — Analyzing a Passage
Let's walk through a short piece of literary nonfiction together. Read the passage below, then follow the step-by-step analysis.
Strengths & Limitations of Arguments
Not every argument you read will be perfect, and that is okay. Part of being a strong reader is recognizing where an argument shines and where it falls short. Here is a comparison of strong versus weak arguments to help you tell the difference.
| Feature | Strong Argument | Weak Argument |
|---|---|---|
| Claim | Clear and specific | Vague or overly broad |
| Evidence | Multiple types from reliable sources | Only one type, or from unreliable sources |
| Reasoning | Explains how evidence supports the claim | Jumps from evidence to conclusion with no explanation |
| Counter-arguments | Acknowledges and responds to the other side | Ignores opposing viewpoints entirely |
| Tone | Respectful, logical, confident | Emotional manipulation, name-calling, fear |
Connection to Writing & Beyond
So far you have been learning how to read and evaluate arguments. But this standard is actually part of the Writing strand of the Common Core. That means you are also expected to write about what you find. When you compose a response to literary nonfiction, you are doing two things at once: showing that you understand the author's argument and giving your own well-supported evaluation.
As you move into 8th grade and high school, these skills will grow more complex. Here is a preview of how argument analysis evolves.
| Skill | Grade 7 (Now) | Grade 8–9 (Next) |
|---|---|---|
| Identify claims | Find the central claim and supporting claims | Evaluate how claims develop and interact over the course of a text |
| Evaluate evidence | Determine if evidence is relevant and sufficient | Analyze whether evidence is credible, accurate, and adequate |
| Spot weaknesses | Notice missing evidence or gaps in reasoning | Identify specific logical fallacies by name (e.g., straw man, false cause) |
| Write a response | Explain whether the argument is convincing using text evidence | Write a full argumentative essay responding to another author's argument |
The great news is that every time you practice tracing and evaluating an argument in 7th grade, you are building a foundation that will help you in every English class—and in real life—for years to come. Whenever someone tries to persuade you of something, you will know exactly the right questions to ask.
Practice Problems
Try these five problems on your own. Click "Show Answer" when you are ready to check your thinking.
Lesson Summary
In this lesson, you learned how to apply 7th-grade reading standards to literary nonfiction—real-world writing that uses literary techniques to make a point. The core skill is tracing and evaluating an author's argument, which means following the logical chain from claim to evidence to reasoning. You practiced asking two critical questions about evidence: Is it relevant? (Does it connect to the claim?) and Is it sufficient? (Is there enough of it?). You also explored five types of evidence—statistics, expert quotes, personal stories, historical examples, and logical reasoning—and learned that stronger arguments typically use multiple types.
Remember the C-E-R-J framework: identify the Claim, locate the Evidence, examine the Reasoning, and make your own Judgment. When you write about literary nonfiction, you show your teacher (and yourself!) that you are not just reading passively—you are thinking critically about whether an argument truly holds up. These skills will serve you in every grade ahead and in the real world, where persuasion is everywhere.