Gil Kalai’s Median game

Saw this neat tweet from Jordan Ellenberg yesterday:

The game itself is really simple enough for kids to understand, so I thought it would be fun to explain it to the boys and play. Here’s the explanation and a little bit of discussion about some math-related ideas that the boys had about the game:

Next we played the game with the boys writing down their numbers on the board and me selecting my number with an 8-sided die. We didn’t know the tie breaker rules so we just made up something at the end. It was fun watching them find a little bit of strategy on the fly:

Finally we wrapped up by talking about some strategy ideas they learned playing the game:

Definitely a fun game. It would be fun to play this in a room full of kids (of any age!) and see what creative strategies they would come up with.

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