NASA Pi Day Challenge


Thursday, March 10 - Tuesday, March 15



Target Audience:

K-12 students and educators, parents, museums, science centers and planetariums


Update: March 15, 2022 – The answers are here! Visit the NASA Pi Day Challenge slideshow to view the illustrated answer keys for each of the problems in the 2022 challenge.

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.

Pi Day gives us a reason to celebrate the mathematical wonder that helps NASA explore the universe. And we're giving students a chance to join in the fun by using pi to explore Earth and space themselves in our ninth annual NASA Pi Day Challenge. The 2022 challenge features four all-new illustrated math problems that get students using pi like NASA scientists and engineers exploring Earth, the Moon, Mars, and planets beyond our solar system.

See our latest Teachable Moments article at the link below to learn more about this year's challenge. Plus explore more ways to celebrate Pi Day with free downloads, lessons, articles, and more.

Pi Day Challenge Resources


Multimedia & Downloads

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