Essay Craft: argument and revision

01

Build an argument: claim, evidence, warrant

In simple words

An argument is like a bridge. On one side is your claim ("we should do this"). On the other side is a reader who is not sure. Your reasons and proof are the planks. The warrant is the bolt that holds each plank to the bank: the reason why that proof really matters for your claim.

Before this course: Writing Essays & Reports (course 13.13). You should already know task words, the thesis statement, body paragraphs (topic sentence, evidence, explanation, link), introductions, conclusions and the basic revise-edit-proofread order.

Key facts

Purdue OWL says a strong thesis is debatable (reasonable people could disagree) and that a narrower claim is easier to support because a broad one needs more evidence and leaves more questions open.
Purdue OWL lists four kinds of claims: fact or definition, cause and effect, value and solutions or policies. One paper can use several.
A simple argument map (from the Toulmin model on Purdue OWL):

Part	What it means
Claim	What you want the reader to accept
Grounds (evidence)	The facts and evidence that support the claim
Warrant	The assumption that links the evidence to the claim
Backing	Extra support for the warrant, often an example
Qualifier	A word such as "many" or "some" that shows the claim may not hold in every case
Rebuttal	Acknowledges another valid view of the situation

Beginners often skip the warrant. They drop in a fact and leave the reader to guess why it matters.
Qualifiers make you more believable, not weaker. "Most students" is easier to prove than "all students".

Example (practice claim)

Claim (policy): "Schools should teach a short unit on checking online information."
Evidence: a fact you can cite, for example from an organization that teaches digital literacy.
Warrant: "If a skill is quick to learn and useful in every subject, schools should teach it."
Qualifier: "most students" instead of "all students".

Step by step

Write your claim in one sentence. Make sure someone could reasonably disagree.
Name its type: fact, cause and effect, value or policy.
Narrow it. Add who, where or how much (for example "most Grade 10 students").
Write two or three reasons that begin with "because".
For each reason, write the evidence you will use and where it comes from.
For each piece of evidence, write the warrant: "This matters because ..."
Add one qualifier word where the claim might not hold in every case.
Check: for every reason, a reader could ask "so what?" and your warrant answers it.

Watch on YouTube

How to write a strong thesis statementScribbr · YouTube · youtube.com

Videos by other creators on YouTube, for reference. They are not made by or affiliated with The Future Market.

LESSON 01Build an argument: claim, evidence, warrant

LESSON 01 / ANIMATED LESSON / AI VOICE00:00 / 01:00

Voice

Read the video script

[Host] "An argument is a bridge from your claim to a doubtful reader."
[Text on screen: Claim. Evidence. Warrant.] "Claim: what you want them to accept. Evidence: your proof. Warrant: why that proof matters."
[Text on screen: 'All students' crossed out, 'most students' written] "Add a qualifier. 'Most' is easier to prove than 'all'."
[Host] "Always ask 'so what?' If you cannot answer, the plank is loose."

Try it now

Pick a claim for a real or practice essay. Fill in a chart with Claim, three reasons, evidence for each, a warrant for each and one qualifier.

ClaudeStuck? Copy a ready-made prompt for Claude

Copy this, open Claude, paste it, and Claude will walk you through the lesson step by step.

For a grown-up: Claude is for adults (18+). Copy this, paste it into Claude, and use the answer to explain the lesson to your child.

I'm learning "Essay Craft: argument and revision" on The Future Market. Lesson 1: "Build an argument: claim, evidence, warrant".

What the lesson teaches:
- Purdue OWL says a strong thesis is debatable (reasonable people could disagree) and that a narrower claim is easier to support because a broad one needs more evidence and leaves more questions open.
- Purdue OWL lists four kinds of claims: fact or definition, cause and effect, value and solutions or policies. One paper can use several.
- A simple argument map (from the Toulmin model on Purdue OWL):
- Part - What it means
- Claim - What you want the reader to accept
- Grounds (evidence) - The facts and evidence that support the claim
- Warrant - The assumption that links the evidence to the claim

The exercise I'm working on:
Pick a claim for a real or practice essay. Fill in a chart with Claim, three reasons, evidence for each, a warrant for each and one qualifier.

I'm stuck. Please:
1. Explain the main idea in plain, simple words with one everyday example.
2. Walk me through the exercise one small step at a time. Ask me what I've done so far before giving the next step.
3. Don't just give me the final answer. Help me do it myself, and check my work when I share it.

I'm a parent helping my child (about 8 years old) with a lesson called "Build an argument: claim, evidence, warrant" from the course "Essay Craft: argument and revision".

Here's what the lesson says:
An argument is like a bridge. On one side is your claim ("we should do this"). On the other side is a reader who is not sure. Your reasons and proof are the planks. The warrant is the bolt that holds each plank to the bank: the reason why that proof really matters for your claim.

The activity:
Pick a claim for a real or practice essay. Fill in a chart with Claim, three reasons, evidence for each, a warrant for each and one qualifier.

Please explain this so an 8-year-old understands: short sentences, a fun everyday example, and no hard words.
Then give me 3 simple questions I can ask my child to check they understood, and a way to do the activity together, one tiny step at a time.

Open Claude

Sources

Purdue OWL, Developing Strong Thesis Statements: owl.purdue.edu/owl/general_writing/academic_writing/establishing_argum
Purdue OWL, Toulmin Argument: owl.purdue.edu/owl/general_writing/academic_writing/historical_perspec

My notes

I learned this

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