Summary
Mark uses math and logic to find the best strategy for the game Guess Who, winning far more often by asking the smartest questions. A clear intro to strategic, systematic thinking.
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Ages 7+
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Teaching resources
Discussion questions
Talk about it
The fastest way to win is to ask questions that split the remaining faces in half each time. Cutting the choices in half over and over gets you to the answer quickly.
- Why is asking a question that removes half the faces smarter than asking about one rare feature?
- How does cutting the choices in half each time speed up the game?
- Where else could 'divide in half to search' help you find something fast?
Quick work-a-long
Vocabulary: strategy, logic, narrow down, systematic.
Try it: Have a friend pick a number 1-100. Guess by always asking 'higher or lower' at the middle. Count how few guesses you need.