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In this activity, learners explore a surprising method for calculating the mathematical constant pi, known as Buffon's Needle. Learners will randomly toss toothpicks into the air over a sheet of paper with two parallel lines and use simple math to approximate Pi. Activity includes step-by-step instructions, a video demonstration, and an in-depth explanation of the equations and concepts behind this method of calculation.

- Under 5 minutes
- 5 to 10 minutes
- $1 - $5 per student
- Ages 11 - 18
- Activity
- English

### Quick Guide

### Materials List (per student)

- Paper
- Ruler
- Pencil
- Toothpicks
- Optional: protractor, graph paper

### Subjects

- Mathematics

### Other

#### Components that are part of this resource:

#### Includes alignment to state and/or national standards:

#### This resource is part of:

#### Access Rights:

- Free access

#### By:

#### Rights:

- Creative Commons: Non-commercial Share Alike (by-nc-sa), Exploratorium Teacher Institute, Exploratorium, 2021