Lesson 1: Claim‑Evidence‑Warrant Model

• Definition: A claim is a concise, debatable statement that expresses your position on an issue.

• Characteristics: It must be specific, assertive, and relevant to the resolution.

• Tip: Frame claims as actionable or evaluative rather than vague observations. >

Evidence

• Definition: Evidence consists of data, facts, statistics, expert testimony, or real‑world examples that substantiate the claim.
• Types: - Empirical - measurable data or research findings. - Anecdotal - personal stories that illustrate broader trends. - Analogical - parallels that illuminate the claim through comparison.

• Best Practice: Cite sources transparently and assess their credibility before inclusion.

Warrant

• Definition: The warrant is the logical bridge that explains why the evidence backs the claim.

• Function: It makes the connection explicit, turning raw data into persuasive support.
• Common Forms: - Causal - shows cause‑and‑effect relationships. - Value‑Based - appeals to shared standards or ethics. - Statistical - demonstrates that a pattern is statistically significant.

• Tip: Whenever you present evidence, pause to articulate the underlying warrant aloud; this habit prevents hidden assumptions.

Building a Complete Argument

1. State the Claim - Begin with a clear, bold sentence.

1. Introduce Evidence - Present the strongest data first, then layer supporting details.

1. Explain the Warrant - Explicitly link each piece of evidence to the claim.

1. Address Counter‑Evidence - Acknowledge opposing data and explain why it does not overturn your warrant.

1. Conclude with Impact - Reinforce why the argument matters to the audience.

• Practical Technique: Use the “3‑Step CEW” slide in presentations - Claim on the left, Evidence in the middle, Warrant on the right - so listeners can follow the logical flow visually.

Common Pitfalls & How to Avoid Them

• Unstated Warrants: Audiences may reject an argument if they cannot see the logical bridge. Always verbalize the warrant. - Over‑Loading Evidence: Too many data points dilute focus. Select the most compelling evidence and save extras for rebuttal.

• Weak Claims: Vague or overly broad claims invite easy challenges. Refine claims to be precise and testable.

• Appeal to Authority Without Context: Cite experts, but also explain why their expertise is relevant to the claim. By internalizing the CEW model, you transform raw ideas into structured arguments that can withstand rigorous debate. - -

Quick Reference Checklist

• Claim: Clear, debatable, concise.

• Evidence: Credible, relevant, well‑cited.

• Warrant: Explicit logical link, transparent reasoning. - Counter‑Evidence: Anticipated, addressed, re‑framed.

• Impact: Tied to audience values or goals.