Pi Day Pin

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!

Grades Covered: 4 through 12
Subjects Covered: Math
Curriculum topics:
  • 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.

Video Demo

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)

More Downloads

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