Teaching Critical Thinking?

Lesson plans, worksheets, quizzes, and classroom resources for teaching logical fallacies and cognitive biases — free starter materials, plus a complete premium pack.

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Everything you need to teach critical thinking

We've created comprehensive teaching materials so you can focus on what matters most—engaging your students. Create a free educator account for starter resources, then unlock the complete Educator Pack whenever you're ready.

Free Educator Account

3 ready-to-use starter resources — an introductory lesson plan, worksheet, and quiz
Access to the same tools as a student account — Fallacy Finder, Bias Checker, and Writing Lab
Save your work and track your activity

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Complete pack

Educator Pack

$39 one-time

All 5 lesson plans, 10 worksheets, 5 quizzes, 2 slide decks, 5 discussion-prompt sets, and 3 grading rubrics
10 printable classroom posters and a 6-week curriculum map
3 print-and-play classroom games
An editable Word version of every printable
One-time purchase — no subscription, and every future addition is included free

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What's in the Educator Pack

The free account includes a sample of these resources. The complete library below is unlocked with the one-time Educator Pack purchase.

Lesson Plans

Complete lesson plans with objectives, step-by-step instructions, discussion questions, and assessments.

Introduction to Logical Fallacies
Fallacies in Advertising
Media Literacy and Bias
Constructing a Logical Argument
Cognitive Biases in Everyday Decisions

Printable Worksheets

Practice exercises with answer keys, from beginner fallacy identification to advanced argument analysis.

Spot the Fallacy exercises (3 levels)
Fallacy matching activities
Bias identification worksheets
Argument analysis templates
Writing & reasoning exercises

Quiz & Test Banks

Assessments organized by difficulty level with separate answer keys for easy grading.

Beginner fallacy quiz (20 questions)
Intermediate passage-based quiz
Advanced analysis quiz
Cognitive biases quiz
Comprehensive assessment

45+

Discussion Prompts

Timeless debate topics, ethical dilemmas, and Socratic seminar questions ready for classroom use.

Debate topics with common fallacies
Ethical dilemma prompts
Media literacy discussions
Real-world reasoning scenarios
Socratic seminar question sets

Slide Decks

Professional presentations with speaker notes, ready for PowerPoint or Google Slides.

Introduction to Logical Fallacies
Cognitive Biases: How Our Brains Trick Us
20-25 slides each
Speaker notes included

Grading Rubrics

Assessment rubrics for evaluating student work on reasoning and argumentation.

Argumentative essay rubric
Debate performance rubric
Critical analysis rubric

Resources for every level

Middle School

Age-appropriate introductions to basic fallacies with relatable examples from everyday life and social media.

High School

Deeper analysis of fallacies and biases in advertising, news media, and public discourse.

College

Advanced critical thinking including formal logic, cognitive psychology, and real-world decision making.

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Create a free educator account for starter teaching resources and full access to our student tools. The complete Educator Pack — every lesson plan, worksheet, quiz, slide deck, rubric, and more — is available with a one-time purchase.

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Books About Logical Fallacies

A few books to help you get a real handle on logical fallacies.

Understanding Logical Fallacies Buy on Amazon

Logically Fallacious Buy on Amazon

The Fallacy Detective Buy on Amazon

The Art of the Argument Buy on Amazon

Mastering Logical Fallacies Buy on Amazon

The above book links to Amazon are affiliate links. If you click through and make a purchase, I may get a commission from the sale.