
Last week, you used pi to solve math problems NASA scientists and engineers use to explore space. Now, you can find out if your answers to the 2021 NASA Pi Day Challenge are correct! Check out the official answer key to see if you've got the makings of a NASA space explorer. 
Explore more: Why celebrate pi just one day a year? Check out these pirelated activities and resources that you can do all year long below! Plus, join us for an upcoming live stream talk for students all about how we build and operate Mars rovers. 








Upcoming Event
MARCH 23, 9 AM PDT
Learning Space with NASA Live Stream –Building and Operating a Mars Rover
In this live stream for students in grades 512, we'll talk about how NASA builds and operates rovers on Mars and build a rubberbandpowered rover together.
> Register to ask questions during the live Q&A!






Here's everything you need to bring the NASA Pi Day Challenge into the classroom. 
Mathematics  Grades 412
Time: Varies




The entire NASA Pi Day Challenge collection can be found in one, handy slideshow for students. 
Mathematics  Grades 412
Time: Varies






Related Lessons for Educators 





In this challenge, students will use a model robotic arm to move items from one location to another. They will engage in the engineering design process to design, build and operate the arm. 
Engineering  Grades K8
Time: 3060 minutes




Whip up a moonlike crater with baking ingredients as a demonstration for students. 
Science  Grades 16
Time: 3060 minutes






In this lesson, students build a paper helicopter, then improve the design and compare and measure performance. 
Engineering  Grades 28
Time: 3060 minutes




Students learn how waves are used in communication between faraway spacecraft and the Deep Space Network on Earth. 
Science  Grades 38
Time: 3060 minutes




Students kinesthetically model the mathematics of how NASA communicates with spacecraft. 
Mathematics  Grades 412
Time: 12 hours






In this activity, students learn how light and energy are spread throughout space. The rate of change can be expressed mathematically, demonstrating why spacecraft like NASA’s Juno need so many solar panels. 
Science  Grades 68
Time: Less than 30 minutes




In this intermediatelevel programming challenge, students use microdevices along with light and mirrors to build a relay that can send information to a distant detector. 
Technology  Grades 812
Time: 12 hours




Students use math to investigate a reallife asteroid impact. 
Mathematics  Grades 812
Time: 3060 minutes






Related Activities for Students 




