*[Feature photo above by Nicolo’ Canali De Rossi.]*

**Math holiday alert:** March 14th is Pi Day. But why limit ourselves to a single day? Playing with math should be a year-round adventure! Here are some ideas to help you celebrate…

**Pi Day Posts on Let’s Play Math! Blog**

- Happy Pi Day I
- Happy Pi Day II
- Happy Pi Day III: Visualizing Pi (an infographic)
- Thinking Thursday: Math Pietry
- Poetry for Pi Day

**Pi Day Videos**

- A Bit About Pi
- Pi: Who Needs That Many Digits?
- Calculating Pi with Real Pies
- Pi and Buffon’s Matches
- Pi Makes a River Bend
- Data Visualization: Pi is Beautiful
- Do the Digits of Pi Encode Shakespeare’s Plays?
- Pi Day: It’s an Irrational Holiday
- For the Curmudgeons: Vi Hart’s Anti-Pi Rant

**And Did You Know?**

Pi Day is also Albert Einstein’s birthday.

- Happy Birthday, Einstein!
- Happy Birthday, Einstein (Part 2)
- Happy Birthday, Einstein (Part 3)
- Happy Birthday, Einstein (Part 4)

**A Pinch of Pi Day Humor**

**Favorite Pi Day Posts on Other Blogs**

- Pi Day in America
- How to celebrate Pi Day: The geekiest time of the year
- Oh Number Pi – Celebrate Pi Day in style!
- Celebrate Pi Day: Seven Classroom Resources for Pi Learning
- π Day Activities (pdf) from Yummy Math
- 32 Pi Day Recipes/Activities/Games for March 14th
- Discovering Pi – the living maths of circles
- Math Art for Kids: Pi Skyline
- How I Spent Pi Day
- Pi Day Post on Irrational Numbers

And if that’s not enough to keep you busy, Education World offers another huge round-up of Pi Day lesson plans and activity ideas.

**Do you have any favorite activities or blog posts about Pi Day? Please share in the comments!**

Pardon for the intrusion. I was wondering if you ever feature interesting and novel pi products on your blog? I figured I’d check in with you via email rather than cluttering up your blog with a comment.

Specifically, my company offers a Digits of Pi poster with almost 6 million digits. Millions more digits than other posters on the market. It’s a printing marvel and also a tribute to the computation of pi to almost 6 million digits.

What also makes it different is that a magnifier is required to view the pi digits, which makes it really fun and interactive. It’s a tool to spark a student’s interest in pi by having them search for repeating patterns of the digits in the poster.

Product Link: http://www.exatextposters.com/Six-Million-Pi-Digits-Poster-p/post-m-01.htm

Let me know and I can provide additional info.