LogicQuest

Every sneaky argument pulls the same handful of tricks. Learn to spot them, build the truth tables behind clear thinking, and deduce your way through a case — with Inspector Logos in your corner.

Level 1

Open a case

The detective work — the same modes as the iOS app, rebuilt for the browser. A hint appears whenever you get stuck; a wrong answer never costs you anything.

Fallacy Detective Read a real argument and name the trick — Ad Hominem, Red Herring, the Slippery Slope, and more. Logic Lab Build the truth table for AND, OR, NOT, IF-THEN and IF-AND-ONLY-IF. The lab checks every row. Venn Logic Two premises, one conclusion — does it really follow? Use the Venn diagram to decide valid vs. invalid. Set Studio new Read a set like A ∪ B′ and shade the exact parts of the Venn that belong — union, overlap, and “not” all at once. Argument Mapper Take an argument apart: which line is the claim, which are premises, and which is the objection? Debate Arena Both sides make their case — judge how strong each argument’s evidence really is, and catch the ones pulling a trick. Logic Grid new A classic deduction puzzle — read the clues, work the ✓/✗ grid, and crack the one match-up that fits. Rule Detective new Inspector Logos has a secret rule. Build test cards, watch what follows and what breaks, and crack the pattern — reasoning like a scientist. The Rogues’ Gallery Meet every fallacy face-to-face — what it looks like, a real example, and why it’s a trick.

Practice the concepts

16 kits from "what is an argument?" up through truth tables, syllogisms, and real-world reasoning — a short round of questions with a hint whenever you get stuck. Your progress stays on this device.

Kit 1: Introduction to Arguments and Reasoning Foundations · Grade 5 · 25 questions Kit 2: Common Logical Fallacies Fallacies in the Wild · Grade 5 · 25 questions Kit 3: Deductive vs Inductive Reasoning Foundations · Grades 5-6 · 25 questions Kit 4: Argument Mapping and Structure Foundations · Grades 5-6 · 25 questions Kit 5: Truth Tables and Boolean Logic Formal & Propositional · Grades 6-7 · 25 questions Kit 6: Fallacies in Media and Persuasion Fallacies in the Wild · Grades 6-7 · 25 questions Kit 7: Syllogisms and Formal Logic Formal & Propositional · Grades 7-8 · 25 questions Kit 8: Master Logician — Capstone Synthesis & Mastery · Grades 7-8 · 25 questions Kit 9: Propositional Logic and Connectives Formal & Propositional · Grades 6-8 · 25 questions Kit 10: Paradoxes and Self-Reference Formal & Propositional · Grades 6-8 · 25 questions Kit 11: Set Theory and Venn Diagrams Formal & Propositional · Grades 6-8 · 25 questions Kit 12: Critical Thinking in Science Fallacies in the Wild · Grades 6-8 · 25 questions Kit 13: Cross-Topic Connections Synthesis & Mastery · Grades 5-6 · 25 questions Kit 14: Real-World Applications Fallacies in the Wild · Grades 6-7 · 25 questions Kit 15: Misconceptions & Reasoning Synthesis & Mastery · Grades 6-7 · 25 questions Kit 16: Advanced Synthesis Synthesis & Mastery · Grades 7-8 · 25 questions

Play together

Two ways to keep going — a same-device match with friends, or a trail through every kit. On-device only; nothing leaves this device.

Logic Duel (pass-and-play) 2–4 players take turns on one device — same questions for everyone, highest first-try score wins. Logic Quest — follow the map → A progression trail through every kit. Clear each stop of real practice, then move on.

More ways to practice

All also on the tab bar above — kept here as quick links:

Mixed practice - revisit what you've learned A short round that shuffles questions from the kits you've played, brought back when they're ready to review. Great for making it stick. LogicQuest Sprint — a calm speed round → Once you’ve mastered a few kits, race your OWN best on what you already know. Timer optional, no penalty for a miss.
LogicQuest 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.

Ensemble stories — the cast together

Explore all the stories →

📚 Books for LogicQuest

Read the story, print a workbook, or color the cast — free PDFs to read offline or print at home.

Browse all books →

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