Lesson 11 · Sets

Introduction to Sets

MathematicsSubject
13 minEstimated read
Activity 11.1

Sharpen a vague rule until it becomes a real set

The taskTake five vague descriptions, rewrite each so that it becomes well defined, then list the members from your own class.
The five to start fromThe tall students. The clever students. The nearby villages. The big numbers on the board. The old teachers.
Then argue about itSwap with another pair. Their job is to find any case where two people could still disagree. If they can, the rule must be rewritten.
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