**The Challenge: **Today, courtesy of the extraordinary Mark Kaercher:

*Materials Needed: *Cardboard tube (toilet paper or paper towel rolls)

*Math concepts* *you could explore with this challenge: *angles, geometry, polygons, symmetry

*Depending on how you use this activity, you may engage with different mathematical standards. I’ve listed possible connected math content above. Here are a few suggestions for how you might integrate the 8 mathematical practices. Feel free to add your own suggestions in the comments! *

4.) Model with mathematics. *How can you model various angle measures with this activity? Is there a way to explore possible polygons? *

5.) Use appropriate tools strategically. *How thin must these strips be? If you plan to build something beyond 2 dimensions, what kind of preparation must you do? *

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edewq

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cool i love art!!

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hi

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hi myself

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Great idea!

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