Logic and philosophy · 8 年生ごろによく学ぶ内容

Reasoning about evidence

What a sample covers and who it could never have reached; how a sample was chosen, and the difference between a sound method and a skewed one; what a count out of a sample permits, and what the words some, most and all allow; the two-by-two table behind every claim that one thing goes with another; base rates, and why a good test for a rare condition still gives far more false alarms than real ones; what an accuracy figure leaves out; conditional claims, their converse and their contrapositive; necessary and sufficient conditions and the two words only if; the two valid moves from an if-then and the two invalid ones they are confused with; and the difference between an argument being valid and its conclusion being true.

Ages 13–14 14 lessons about 9.5 hours in all

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