Day 42: Exterior angle theorem

Today was the first time this school year that I incorporated the problems around the room activity (see the purple papers taped to the wall?). I did not have the energy or creativity last week to develop a problem based activity with this concept, so I gave myself a break and kept it simple today. It got learned. Hopefully next year I’ll develop an exploration for this.

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Update: I explained what “Problems around the room” is here

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