Paula Beardell Krieg’s puff boxes – day 2

Saw this great project from Paula Beardell Krieg yesterday:

We even turned it into a fun little afternoon project since my younger son was home sick from school:

Paula Beardell Krieg’s Puff Boxes

Today I wanted to use the puff boxes for a project with both of the boys. We started by trying to recreate this diagrams in the original post:

Screen Shot 2016-04-02 at 10.06.11 AM

[as a fun, side note – my high school math teacher used the term “backstage” for the work leading up to the solution of a problem. Well, that’s what he said the term was – he abbreviated it as “BS” 🙂 ]

We tried with a rule, compass, and a protractor. Recreating this diagram is a challenging exercise for kids – it is really hard to get the angles right! Here’s their work and then the video:

 

Next I had the boys cut out the shape. After they finished we talked about the cut outs and my older son made the puff box. The boys had some fun ideas about the shape after it was built.

 

I think these puff boxes make for a fantastic math-related activity for kids. Hopefully I can figure out a way to add them to next year’s Family Math projects at my son’s elementary school.

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