How We Let Students Wrestle with Definitions





Teacher: Come tape yours up on the whiteboard.





The best midpoint is inline with ground and foundation.

Lots of pro and cons.


The Smurf house!

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  1. I think the lesson structure is good, but I wonder if you created the houses for students so that it is more challenging for students to decide where the midpoint is if you would end up with more variation in their choices?

    1. Hi David,

      Thanks for stopping by! Should we use the Smurf house in that case? : )

  2. This is great, Amy! Another extension might be to ask students, "based on where you put the midpoint...what is the midpoint of?" I know that's not quite what I mean, but when they're floating the midpoint, I'm curious about what two points that is the midpoint of? Great work!!!

  3. I think the students thought midpoint here meant of the entire structure, which means they answered a more complicated question. I think this is the centroid of a 2d geometric object, like a pair of houses.

