The official website for San Francisco's Exploratorium (a science/art museum), which features a history of Pi Day as well as links and activities to celebrate
Welcome to TeachPi.org, the first and best place on the Web for teachers who want to find or share ideas for Pi Day activities, learning, and entertainment.
There are many fun and innovative ways to celebrate Pi Day in your classroom and beyondâ€”you probably already use it as a jumping-off point for key mathematical lessons. If you're in need of something to invigorate your tried-and-true Pi Day traditions, NCTM has you covered! We've gathered our best pi-related activities from each of our publications and resources that will suit your grade level.