A gentle, playful start in clear thinking, with no coding and no hard maths. Break problems into steps, reason with rules, spot hidden assumptions and weak arguments, make good guesses with rough numbers, and check what an AI tells you before you trust it. Every module starts with a puzzle from everyday life: markets, family budgets, study and freelancing.
Read the course: the same chapters with diagrams, labs and quizzes.
Chapters
Part 1 · Warm up your thinking
21 min
Part 2 · Steps and patterns
25 min
Part 3 · If, then, and maybe
23 min
Part 4 · Assumptions, causes and evidence
19 min
Part 5 · Rough numbers and good guesses
21 min
Part 6 · Weak arguments and how to answer them
24 min
Part 7 · Thinking with AI: ask well, check always
26 min
Part 8 · Deciding without all the facts, and capstone