**Here is a fun way for students to 'discover' Pi.**

**Materials**- (3) different size circles -small, Medium, and Large (bottle caps or other circles)
- yarn or string
- scissors
- ruler
- calculator (optional)
- paper and pencil

**Directions**- Introduce or review the terms
**diameter**and**circumference**. - Have students measure the
**diameter**of the 1st circle with a ruler and**record**the measurement. - Ask students how they should measure the
**circumference**of circle 1. Elicit from the students that they should use string, then measure the string. - Have students measure the
**circumference**of the 1st circle with the string, then measure the string with their ruler. They need to**record**the measurement. - Have students
**divide**the**circumference by the diameter**. - Continue with the same procedure to measure circle 2 and 3.
- In each case, when the students
**divide the circumference by the diameter**, they should get**approximately 3.14 or 3 1/7 (or 22/7)**. - Discuss with students how this happens with
**ALL**circles. - Introduce the term
**Pi and the Symbol for Pi.**

10.

*Of course having some tasty pie would be a great wrap up for this activity!*

**Don't forget to celebrate Pi Day on March 14 (3-14)!!!**

**Have fun with math!**