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Pi Day (March 14)
This guide has videos, online interactives and lesson ideas for Pi Day.
Why is there a special day for Pi, the ratio of a circle's circumference (distance around the circle) to its diameter (distance across the circle)? What makes Pi so special?
The objective of this website is to convince the world that mathematics is fun and bring attention to mathematicians’ favorite number, Pi. Learn about Pi, watch some videos and see some Pi in action.
