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Are you ready for Pi Day on March 14? Do you already have your Pi Pie recipe picked out and ready to bake (and then etch with a laser)? GREAT! Now, what to do while it bakes…

NASA’s Jet Propulsion Laboratory has the answer! JPL has assembled a range of activities that will keep both classrooms individual geeklets busy studying math and having fun.

### Pi In the Classroom:

The 2018 NASA Pi Day Challenge – The fifth installment of NASA’s illustrated math problem set features four new challenges that get students exploring space with pi.

Teachable Moment: Pi Goes the Distance at NASA – Learn about the science behind the 2018 Pi Day Challenge, including related resources for educators and how to make Pi Day one of those acclaimed *Teachable Moments.*

Pi in the Sky Lessons – Explore the entire online catalog of NASA Pi Day Challenge lessons for grades 4-12. Each lesson includes an illustrated poster or handout and answer key, plus a list of applicable Common Core Math and Next Generation Science Standards.

### Pi at Home:

NASA Pi Day Challenge – All 20 illustrated math challenges from the “Pi in the Sky” series can be found in one, handy slideshow for students.

How Many Decimals of Pi Do We Really Need? – Have you memorized more than 70,000 digits of pi like other world record holders? A JPL engineer explains why that is crazy (because you really only need a tiny fraction of that for most calculations).

### My Pi Is the Greatest

Think you’ve got an amazing Pi Day pie? Want to show off your math skills to everyone on the internet? Check out Pi Day: What’s Going ‘Round to tell NASA how you’re celebrating Pi Day this year and see some great contributions from other geeks around the planet!

### MORE ABOUT PI

Pi (π) is the ratio of a circle’s circumference to its diameter. Pi is a constant number, meaning that for all circles of any size, Pi will be the same. Pi is also an infinite number, often abbreviated to ** 3.14** (a number bearing a striking resemblance to March 14).

Pie is a delicious food with a crust and various fillings, often topped with more crust or a meringue suitable for laser etching.

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