Study guide

Critical Thinking study guide

Critical thinking is the disciplined process of examining information, reasoning carefully, identifying assumptions, evaluating evidence, and reaching justified conclusions.

Modules: 7 modules
Lessons: 52 lessons
Estimated time: ~6-7 hours
Key terms: 89 key terms

How to work through it

1. Follow the order below. The modules build on each other — start at the top and work down.
2. Recall before you re-read. After each lesson, try to explain the idea from memory, then check yourself with the flashcards.
3. Test at the end of each module. The quizzes below show what stuck and what to review.

Full lesson outline

Module 1. Foundations of Critical Thinking

Module 2. Reasoning in the Real World

Module 3. Logic and Argument

Module 4. Thinking in Practice

Module 5. How We Know

Module 6. Paradoxes and Puzzles

Module 7. Critical Thinking in the Age of AI

Practise & review

Key terms

The vocabulary you’ll meet, each linked to its full definition in the glossary.