When:Friday, March 6 - Monday, March 16
Target Audience:K-12 students and educators, parents, museums, science centers and planetariums
NASA is joining schools, students and science centers across the U.S. to celebrate one of the most well known and beloved numbers: pi. Used throughout the STEM world – especially for space exploration! – pi is the number that results from dividing the circumference of any circle by its diameter. Pi can be and often is rounded to 3.14 (even though its decimals never end), which is why 3/14 has been designated National Pi Day.
Educators and students can participate in honoring this mathematical marvel by taking part in the NASA Pi Day Challenge! The illustrated math problem set gets students solving the same problems scientists and engineers do to explore space. Explore previous challenges and even more pi-related resources for educators and students below!
Pi Day Challenge Lessons
These illustrated math problems and problem sets featuring pi and NASA missions and science work all year long – not just on Pi Day.
Pi Day: What’s Going ’Round
Tell us what you’re up to this Pi Day and share your stories and photos with NASA.
Slideshow: NASA Pi Day Challenge
Get students doing the math for themselves on the official NASA Pi Day Challenge slideshow, which features the entire collection of "Pi in the Sky" illustrated math problems.
How Many Decimals of Pi Do We Really Need?
While you may have memorized more than 70,000 digits of pi, world record holders, a JPL engineer explains why you really only need a tiny fraction of that for most calculations.
Feature: 18 Ways NASA Uses Pi
Whether it's sending spacecraft to other planets, driving rovers on Mars, finding out what planets are made of or how deep alien oceans are, pi takes us far at NASA. Find out how pi helps us explore space.