Join the 35th annual celebration of our own homegrown holiday! March 14th (3/14) commemorates the irrational, transcendent, and never ending ratio that helps describe circles of all sizes. Watch math artist John Sims showcase his handmade Pi Quilt and perform spoken word poems and original music based on pi. Explore math inspired activities and presentations, then join our pi parade and eat a free piece of pie. Come for the STEAM and stay for the slice! 

Pi Day festivities begin at 11:00 a.m. and go until 3:00 p.m.

Storytime Science: March Mathness
With Vivian Altmann
11:00 a.m.
Bechtel Gallery 3, Classroom 1606

Join us for a special math-inspired edition of Storytime Science! Enjoy a math-themed storybook read-aloud for children and their grown-ups. The Exploratorium's own Vivian Altmann will read The Cookie Fiasco by Dan Santat and Mo Willems. After the story, take math into the third dimension by crafting paper plate Bucky balls, greeting card boxes, and pinwheel shapes.

Pi (π) Day Celebration
With John Sims
Join for free online via Facebook or YouTube or at the Exploratorium
12:00–1:30 p.m.
Bechtel Gallery 3, Phyllis C. Wattis Studio

No matter how you slice it, you don’t want to miss Pi (π) Day. Math artist John Sims will perform work from his music project 31415: The Pi Collection and showcase his Pi Quilt. Afterward, our expert educators share pi’s mathematical history and activities you can try at the museum and at home. 

Pi Procession
1:59 p.m.
Plaza

Grab your digit and get in line for the annual Pi Procession! A high-spirited crowd parades through the museum and circles the Pi Shrine 3.14 times, waving the digits of pi and singing a rousing chorus of “Happy Birthday” to Einstein. All participants will enjoy a free slice of pie following the parade.