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Celebrate Pi Day on March 14th (3.14) with engaging activities that spark interest in mathematics! Here are some of my favorite activities I’ve used with K-12 students to make learning about this iconic number fun and interactive. From pi-themed games to delicious pie baking, there are countless to honor both Pi and the International Day of Mathematics. Let's inspire the next generation of math enthusiasts.

Classroom Posters

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Fun Facts About Pi

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Calculating Pi Like Archimedes

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Pi Day
 

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Can't Stop
 

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Iconic Number
 

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Inspire!
 

UNESCO announced Pi-Day as the International Day of Mathematics in 2019.

"Greater global awareness of mathematical sciences is vital to addressing challenges in areas such as artificial intelligence, climate change, energy, and sustainable development, and to improving the quality of life in both the developed and the developing worlds."  

Do not forget to check out the International Day of Mathematics Page for the posters!

2020 - Mathematics is Everywhere

(The first-ever International Day of Mathematics)

2021 - Mathematics for a Better World 

2022 - Mathematics Unites

2023 - Mathematics for Everyone

2024 - Playing with Math

2025 - Mathematics, Art, and Creativity

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Pi TV 
Brilliant Pi Videos

Calculating Pi with Darts
05:48
Pi me a River - Numberphile
06:28
Calculating π by hand: the Chudnovsky algorithm
16:55
Pi is Beautiful - Numberphile
08:24
The Discovery That Transformed Pi
18:40
Why do colliding blocks compute pi?
15:16
Why is pi here?  And why is it squared?  A geometric answer to the Basel problem
17:08
Ramanujan's infinite root and its crazy cousins
17:17
Pi is IRRATIONAL: animation of a gorgeous proof
23:20

Shopπng for π

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