I take no credit for this activity whatsoever. I saw the basic idea on Pinterest while looking for something else (for some reason I never pinned it), but I remembered the idea. In Geometry, students need to know cross-sections (G-GMD 4 - Identify the shapes of two-dimensional cross-sections of three-dimensional objects). To give students a better idea of cross-sections, I always explained it as taking a slice of a solid. The idea I found literally has students taking slices of shapes.

I gave students a table to fill in for the notebook page. I found this idea when I did search for this activity, but I can't find it now to cite it. Students had to create a cylinder, rectangular prism, cone, and sphere, and slice them parallel to the base, perpendicular to the base, and then skewed to the base. This activity was simple, and pretty quick. (It took less than half the period.) I will definitely repeat it again next year.

Tip: Start with the cylinder. The Play-Doh is pretty much in a cylinder shape when you take it out of its container.

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