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A comment on Many elementary teachers don’t understand math, and it makes them anxious. Parent comment

Re:Many elementary teachers don’t understand math, and it ma... by d0mine on Sunday December 01, 2019 @02:57AM (#21674438)
Simple examples may be useful. Exploring them, proving stuff about them it is how one may carve a foothold to solve a harder problem.

Example: The Josephus Problem - Numberphile https://youtube.com/watch?v=uCsD3ZGzMgE&t=86

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