# Pi Day 3.14

Founded in 1988 at the Exploratorium, Pi (π) Day has become an international holiday, celebrated live and online all around the world. The numbers in the date (3/14) match the first three digits of the mathematical constant pi (π).

What is π, anyway? Divide any circle’s circumference by its diameter; the answer (whether for a pie plate or a planet) is always approximately 3.14, a number we represent with the Greek letter π. Keep calculating π’s digits with more and more accuracy—as mathematicians have been doing for 4,000 years—and you’ll discover they go on literally forever, with no pattern.

Pi Day Activities for Elementary and Middle School Students | Global Educator Institute
If you want to be really specific, you can kick-off your Pi Day activities at exactly 1:59 p.m. Pi has been calculated to over ten trilli…
Pi Day: 2012 | Exploratorium Video
Meet Pi Day founder Larry Shaw and join hosts Ron Hipschman and Lori Lambertson to find out what’s so special about pi—the irrational…
NEA – Math Resources for Pi Day
Wolfram MathWorld offers a library of 33 Pi resources. Topics range from Archimedes algorithm to Strassnitsky’s formula. Wolfram Demons…
TeachPi.org » Activities
This section is the heart of TeachPi.org. It’s where you’ve come to find more than 50 ideas for ways to make Pi Day entertaining, ed…
Best Raspberry Pi Starter Kits – Pi Day
Raspberry Pi is a small and affordable computer board available for as low as \$35 only. There are times it gets cheaper. For just \$5, you…
Hilarious Pi Jokes – Pi Day
jokes and quotes about Pi that are perfect for any occasion. Yes! Perfect for everyone – even those who are not too crazy about Math! H…
Pi Day 2020 Celebrations | Teacher and Student Pi Day Celebration Ideas
Setting Up the Pi Day GrooveWant to set the Pi day groove on? Dancing to the classic pi-themed songs such as American Pie, Honey Bunch, a…
Pi Day 2020 Activities | Fun Activities to Do on Pi Day
Similar to our favorite irrational number pi, paper chains can go on and on and on forever! With a whole class or an entire year group, y…
One Million Digits of Pi – How Many Can You Remember?
Below are the first one million digits of Pi. Why don’t you challenge yourself to a memory game and see just how many digits you can me…
Pi Day: History of Pi | Exploratorium
Pi (π) has been known for almost 4000 years—but even if we calculated the number of seconds in those 4000 years and calculated π to t…
Pi Toss | Exploratorium Museum Exhibits
This surprising method of calculating pi, known as Buffon’s Needle, was discovered by accident over 300 years ago by a French mathema…
Pi Graph: Data & Mathematics Science Activity | Exploratorium Teacher Institute Project
there’s something constant in the linear relationship between any circle’s diameter and circumference.This constant of proportionalit…
Cutting Pi: Mathematics & Measurement Science Activity | Exploratorium Teacher Institute Project
Cutting string diameters from a string circumference is a physical way to divide the circumference of a circle by its diameter. No matter…
Pi Has Your Number | Exploratorium Museum Exhibits
The digits of pi go on forever, without ever falling into a repeating pattern. Therefore any sequence of numbers you can think of–your…
Pi Day March 14, 2020: Events, Activities, & History | Exploratorium
What is π, anyway? Divide any circle’s circumference by its diameter; the answer (whether for a pie plate or a planet) is always appro…
NATIONAL PI DAY – March 14, 2020 | National Today
Exploratorium in 1988 San Francisco, where it was thought up by physicist Larry Shaw.Shaw linked March 14 with the first digits of pi (3….