This fun math project encodes the first digits of Pi into a pin that reinforces the famous ratio of a circle’s circumference to its diameter!

- Geometry
- Pi
- Irrational Numbers
- Circles

Idea Sheets are cross-referenced to subjects listed in the Common Core, Next Generation Science Standards, and California Content Standards.

StandardCalifornia

We prepared a video demonstration for this RAFT Idea so you can see the activity in action. (Watch more RAFT Videos on our YouTube channel)

This idea sheet has additional materials for you to download.