What Is Pi?

Want to learn all about pi? Use this one-page handout as a way to introduce students to the number pi or to celebrate Pi Day! This helpful resource explains that pi is the the ratio of the circumference of a circle to its diameter and the symbol π can be used to show pi. Students will see how pi is used to find areas and volumes of shapes, learn the first 50 digits of this irrational number, explore how Pi Day is celebrated, and more!

Appropriate for students in seventh and eighth grade, this printable resource offers students an interesting and accessible introduction to this important mathematical concept.

To extend students’ familiarity with pi, check out the Graph the Frequency: The First 100 Digits of Pi worksheet or the Probability: The First 100 Digits of Pi worksheet. Or challenge learners to start memorizing the digits of pi with The First 100 Digits of Pi handout.