Silva Chang took the lead in developing this circle session on Origami for the 2011 Circle on the Road workshop.

**Mathematical Origami: PHiZZ Dodecahedron**

In this session we learned how to make a dodecahedron using Tom Hull’s PHiZZ modular origami units.

We begin with a discussion of the Platonic solids.

- What is a Platonic solid?
- Why are there only five solids?
- How many vertices, faces and edges does each solid have?

Then we will make PHiZZ units and learn how to join them together to make a dodecahedron.

http://www.youtube.com/watch?v=vFYw47Wx2N8

http://www.youtube.com/watch?v=dH-uTRdI4XU

**Apprentices: **Leszek Gawarecki, Maria Acosta, Marta Eso

**Audience:**** **This session is for middle schoolers who have a basic knowledge of geometry concepts like angles and polygons. Older students who would like to learn how to make PHiZZ origami sculptures are also welcome.

Attachments | |
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dodecahedron handout.pdf | |

phizz_dodecahedron.pdf |