ClaimCraft

ClaimCraft's 10-character cast embodies the foundational argumentation primitives — claim (Posit, asserting-for-testing), evidence (Heft, weighing-with-care), warrant (Lean, connective-reasoning), counterargument (Counter, opponent-taking-seriously), and fallacy (Pry, trap-spotting starting with your own arguments). Logos (mentor; renamed) frames each primitive; cast embodies them at school-debate-club / community-forum scale. Epistemic-doubt gate enforced (CRITICAL): cast scaffolds reasoning between cynicism ('trust no one') and relativism ('all claims equal'); foregrounds 'what would change your mind?' as load-bearing question; cross-app-bias-safe register from SleuthLab + AI-ethics from AIForge + 18-fallacy catalogue from LogicQuest.

Level 1

Build & test arguments

Two hands-on reasoning surfaces — the same skills as the iOS app, rebuilt for the browser.

Argument Studio Tap evidence, reasoning, and rebuttals onto a claim and watch your argument's strength meter climb. Fallacy Hunt Read what someone says and spot the sneaky thinking move — 12 fallacies to catch. Reasoning Lab Steelman an opposing view before you rebut it, and read laterally to judge whether a source can be trusted. Two moves that make you hard to fool.

Practice the concepts

16 kits from claims-and-evidence basics up to advanced synthesis — a short round of questions with a hint whenever you get stuck. Your progress stays on this device.

Kit 1: Claims, Evidence & Reasoning Evidence Evaluation · grades 4-5 · 25 questions Kit 2: Fact vs. Opinion & Source Evaluation Claims & Evidence · grades 4-5 · 25 questions Kit 3: Logical Fallacies Logical Fallacies · grades 5-6 · 25 questions Kit 4: Argument Structure & Counterarguments Argument Structure · grades 5-6 · 25 questions Kit 5: Evidence Quality & Evaluation Evidence Evaluation · grades 5-6 · 25 questions Kit 6: Persuasion & Rhetorical Strategies Persuasion & Rhetoric · grades 6-7 · 25 questions Kit 7: Media Literacy & Bias Detection Media Literacy · grades 6-7 · 25 questions Kit 8: Ethical Reasoning & Complex Arguments Ethical Reasoning · grades 7-8 · 25 questions Kit 9: Evidence Evaluation Methods Evidence Evaluation · grades · 25 questions Kit 10: Logical Fallacies Logical Fallacies · grades · 25 questions Kit 11: Persuasive Techniques Persuasion & Rhetoric · grades · 25 questions Kit 12: Debate & Argumentation Argument Structure · grades · 25 questions Kit 13: Cross-Topic Connections Evidence Evaluation · grades 5-6 · 25 questions Kit 14: Real-World Applications Evidence Evaluation · grades 6-7 · 25 questions Kit 15: Misconceptions & Reasoning Evidence Evaluation · grades 6-7 · 25 questions Kit 16: Advanced Synthesis Evidence Evaluation · grades 7-8 · 25 questions
ClaimCraft mascot

Meet the cast — the characters who teach this

Each one stands for an idea you’ll practice. Tap a character to read their illustrated story and hear their audio drama.

Explore all the stories →

Privacy & how it works