Yes that’s pi, not pie. Today marks the 30th anniversary of the math-inspired holiday.
Pi, denoted by the Greek letter “π”, has been part of human knowledge for millennia, but it wasn’t until 1988 that physicist Larry Shaw organized what is now recognized as the first “Pi Day” celebration at the San Francisco Exploratorium science museum. Shaw chose March 14, or 3.14 — the first three digits of pi — as Pi Day. Shaw died last year, but Pi Day is still celebrated by lovers of mathematics around the world. Today the WHAM 5th grade students learned how to apply the circumference formula to find the radius, diameter, or the circumference of of a circle all while enjoying a little pie. Happy Pi Day!
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