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Trace and Evaluate
Arguments

Learn to identify claims, trace the reasons and evidence that support them, and evaluate which claims hold up under scrutiny.

6th Grade Reading

What Is an Argument in Writing?

In everyday life, an "argument" might mean a heated disagreement. But in reading and writing, an argument is something different: it is a writer's attempt to convince you that a particular idea is true or that a specific action should be taken.

Three Key Terms You Need

Claim
The author's main point or position: what they want you to believe or do.
Reason
A logical explanation of why the claim is true. Answers: "Why should I believe this?"
Evidence
Specific facts, data, examples, or expert quotes that back up the reason.

Why Does Evaluating Arguments Matter?

Every day you encounter arguments: in news articles, advertisements, social media posts, and even conversations. If you cannot tell which claims are well-supported and which are not, you risk being misled.

1
Critical thinking: You learn to question what you read instead of accepting it blindly.
2
Stronger writing: Understanding good arguments helps you build your own.
3
Informed decisions: You can separate fact from opinion in the real world.

The Structure of an Argument

CLAIM Reason 1 Reason 2 Reason 3 Evidence: Stats Evidence: Expert Evidence: Example Each reason needs evidence to be convincing

Supported vs. Unsupported Claims

Supported Claim
Backed by reasons that are explained with specific evidence such as facts, data, or expert opinions.
Unsupported Claim
Stated without reasons or evidence: the author gives only opinions, feelings, or vague statements.

Types of Evidence Authors Use

Facts and Statistics
Verifiable data or numbers: "78% of students reported improvement."
Expert Opinions
Quotes or references from people with credentials in the subject area.
Examples
Specific real-world cases or scenarios that illustrate the point.
Personal Anecdotes
Individual stories: can be compelling but are weaker than data or experts.

How to Trace an Argument

1
Find the claim. Ask: "What is the author trying to convince me of?" Look in the introduction and conclusion.
2
Identify the reasons. Ask: "Why does the author say this is true?" Look for topic sentences in body paragraphs.
3
Locate the evidence. Ask: "What proof does the author give?" Look for facts, statistics, quotes, and examples.
4
Evaluate the connection. Ask: "Does the evidence actually support the reason, and does the reason support the claim?"
5
Judge the strength. Decide if the argument is well-supported or if gaps remain.

Example 1: School Lunches

Claim
Schools should offer more vegetable options at lunch.
Reason
Students who eat more vegetables perform better academically.
Evidence
A 2022 study showed a 15% test score improvement.

Example 2: Longer Recess

Claim
Recess should be extended to 45 minutes.
Reason
Kids need more time to play.
Evidence?
"Everyone knows" is an opinion, not data, expert testimony, or a real example.

Example 3: Mixed Evidence

Ban phones in class Phones distract students "Just bad for kids" Dr. Patel: 30% less retention No evidence given

Signal Words to Watch For

Claim Signals
"I believe," "should," "must," "it is important that," "the best solution is"
Reason Signals
"because," "since," "the reason is," "this is due to," "as a result of"
Evidence Signals
"according to," "research shows," "for example," "a study found," "data indicates"

Is the Evidence Strong Enough?

1
Relevance: Does the evidence directly connect to the reason and claim?
2
Sufficiency: Is there enough evidence, or is the author relying on just one example?
3
Credibility: Does the evidence come from a trustworthy, knowledgeable source?
4
Accuracy: Can the facts and data be verified? Are the numbers realistic?

Common Mistakes to Avoid

✕ Confusing Claim and Reason
The claim is the main point; the reason explains why. Mixing them up makes you lose track of the argument.
✕ Accepting Opinion as Evidence
Phrases like "everyone knows" or "obviously" are opinions, not real evidence. Always look for data or expert sources.
✕ Ignoring Unsupported Claims
An author may make several claims. Do not assume all are supported just because one is. Evaluate each separately.

Strong vs. Weak Arguments

Strong Argument Weak Argument
Claim Clear and specific Vague or overly broad
Reasons Logical and connected to claim Missing or unrelated
Evidence Facts, data, expert quotes Opinions, feelings, "everyone knows"
Sources Credible and named Unnamed or unreliable
Logic Evidence supports reasons; reasons support claim Gaps between evidence and claim

Question 1 of 5

Which sentence in the passage is the claim?

Question 2 of 5

What is the biggest weakness in this argument?

Question 3 of 5

Which of the following is an example of strong evidence?

Question 4 of 5

Which claim in this passage is not supported by evidence?

Question 5 of 5

When you trace an argument, what are you doing?