Pi Day Party Resource Round-up: all the videos, books, printables, and hands-on fun ideas you need to make Pi Day fun in your homeschool!
March 14, 3.14, is everyone’s favorite Pi (π) Day. (Well, not everyone’s favorite. Some people hate pi; keep scrolling, and you’ll learn why!)
Any excuse to celebrate gets me excited. Combine the glories of math with the deliciousness of pie (both dessert and savory)? I am All In!
In this post you will find a round-up of amazing videos, books, art projects, music, recipes, and math activities to delight all ages. Join my email list, and you’ll get access to the free printable Pi Posters shown below (the orange background? Yeah, get out your microscope and you’ll see it’s actually the first million digits of π!)! I also have a printable Pi Day Menu (all round foods, please) for your perusal.
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What is π?
Pi (π) is a mathematical constant. It describes the ratio of a circle’s circumference to its diameter: Pi = Circumference/Diameter. It is an irrational number (it cannot be described by a fraction), and there does not appear to be a pattern in the digits in its decimal representation. Pi (π) is most simply rounded to the approximate value 3.14. (Thus: 3/14, March 14}
Learning more about Pi
Books to Read about Pi
Sir Cumference and the Dragon of Pi, How to Bake Pi, and Navigating Early
Videos, Projects, and More Fun Ways to Explore Pi at your Pi Day Party
- That time Pi Day was almost March 2
- What if you translated Pi into music on saxophone or piano?
- Or turned pi into colorful art?
- Watch how we could calculate Pi…with pies.
- Maybe we should just bake some pies. Yum! Here are 20 recipes to celebrate Pi Day.
- Pi Day Party Schooling with Dachelle
- Create a Pi Cityscape
- Learn About Pi With LEGO® Bricks
- Remember the printable Pi Day Menu available to Humility and Doxology email subscribers? Take all your round foods (or other circular objects) and demonstrate pi with string!
- Buffon’s Needle is a classic geometric probability problem, involving dropping needles on a lined page and calculating the probability of one of the needles crossing a line on the page. The probability is related to pi! You can try the experiment on your own at home, or if (like me) you’d like to avoid dropping hundreds of needles, you can use this app simulation.
- Do you have a puzzle-lover? Try this Pi Sudoku puzzle.
- Do you love crafts? Try these Pi-themed craft ideas!
- For the Grinches among us: Why Pi is STUPID! (ok, Vi, I get it, but I want to eat pizza and key lime pie, please, so let me have my fun!)
- And if you really want to get her going (or you have some trigonometry students at your home who are a bit grumpy about pi and radians and what not these days), check out her Pi Is (still) Wrong video. I guess we could try to have Tau day in June (but I can’t quite figure out what foods we would eat…).
- {Note: I collected all of those Pi-themed YouTube videos into 1 handy playlist for you!}
- Pie humor? My dad’s favorite corny joke (note, you need a southern accent for this to work): Why is my hand like a lemon pie? Because it’s got meringue on it!
- {Pi Day is also Albert Einstein’s birthday, did you know? Even more excuses to party!}
Wear Pi (but not on your face):
Here is a Pi Day image you can download or screenshot to use on social media:
How do you plan to celebrate Pi Day? I’d love for you to join me on Facebook or Instagram. Tag @HumilityandDoxology on social media with your Pi Day adventures; I can’t wait to see your family’s fun! And don’t forget to join my email list for access to the Pi Day Printables.

Love this list of things to do on pi day, how cool!
Thanks! I hope you find some fun ideas to use this year or in the future. 🙂
This is so great. I have a Pi Day t-shirt to wear to class. I may have to celebrate the week before and use some of these ideas!
I hope you do!
I love the pi day menu
Can’t go wrong with pizza and cookies, right? 😉
We love Pi Day here. In fact, we used to all have pi shirts before some outgrew them.
that’s awesome 🙂
We’ve never done anything for Pi day, but you’ve inspired me!
Some years we go all in and some years we keep it simple, but we’re just nerdy enough to get a kick out of it every year. 🙂
Pi Day was our favorite! I loved especially that it excited my youngest son so much. In 2015, when we could express Pi to the time of day at 9:26AM, he exclaimed how “cool Pi Day would have been in 1592!”… except it apparently was not expressed by the Greek letter until the 1700’s. I am definitely ordering the “I ate…” t-shirt for him and sending it with cookies, as he is far from home in the military this year! Thank you for the link!
Oh what a sweet idea! I love it. ❤