After my BC Calculus students rocked the 2016 AP exam (check out their custom answer keys!), we started working on the Star Project.

The learned how to fold a 60-piece star, and then I asked them two straight-forward questions:

What’s the surface area of the star in terms of the side length of one of the pieces of paper?

What’s the volume of the star in terms of the side length of one of the piece of paper?

Here are some of their video solutions. The complete playlist of videos is online here.

Surface Area

Volume