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The Thinking Toolbox

Thirty-Five Lessons That Will Build Your Reasoning Skills

by Nathaniel Bluedorn and Hans Bluedorn

This book is like a toolbox, full of different kinds of tools you can use for different thinking tasks. Just as you use the wrench in a regular tool box to fix the sink, so you can use the tools we give you in this book to solve thinking problems.

We wrote this book for children and adults who want to learn logic and critical thinking skills. The Thinking Toolbox follows the same style as The Fallacy Detective with lessons and exercises and an answer key in the back. Parents and teachers, as well as anybody who wants to learn logic, will find The Thinking Toolbox easy to use and practical.


  1. Introduction
    • How to Use This Book
  2. Tools for Thinking
    • A Thinking Tool
    • A Discussion, a Disagreement, an Argument, and a Fight
    • When It Is Dumb to Argue
    • Fact, Inference, or Opinion
    • Finding the Premises and Conclusion
    • How to List Reasons Why You Believe Something
    • How to Defeat Your Own Argument
    • When Not to Use Logic
  3. Tools for Opposing Viewpoints
    • Using the Opposing Viewpoints Chart
    • Opposing Viewpoints Are Everywhere
    • The Good, the Bad, and the Ugly Evidence
    • You Can’t Believe Everything You Hear
    • Are You Primary or Secondary?
    • Who Has a Reason to Lie?
    • Corroborating Evidence
    • Mystery of the Stolen Manoot
    • Stir Plot until Thickened
    • Gunfight at the O.K. Corral
    • Does a Possibly Make a Probably?
    • Circumstantial Evidence
    • Puzzling Developments
  4. Tools for Science
    • Mole the Scientist
    • Tools that Help Scientists Do Their Job
    • How to Be a Keen Observer
    • Brainstorming
    • Hypothesis Is a Huge Word
    • How to Prove You Are Wrong
    • A Good Experiment
    • How to Analyze Data
    • Listen and Learn
    • Pseudoscience
    • A Little Project
  5. Projects
    • Projects
    • “Herbal the Verbal Gerbil” Game
    • The Mystery of the Large Letter Library
  6. Answer Key

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We now offer a 35% discount to schools and homeschool co-ops for orders of our books.

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