Education · Math · NovElla

Pi Day 2020

Happy Pi Day


March 14th is Pi Day!

Today is also the birthday of Albert Einstein (1879-1955).

Pi is the irrational number π = 3.1415926535…


The first three digits of pi coincide with the U.S. mm-dd-yy date format of 3/14 for Pi Day.


Pi is calculated as the circumference of a circle, divided by its diameter.



Celebrate Pi Day by drawing circles with this online spirograph tool! “Inspirograph

These circle designs are called hypotrochoids. A hypotrochoid is a curve drawn by rolling one circle around inside another stationary circle.

My Spirograph Drawing:


What shapes can you make? Creating the different shapes reminds me of cutting out snowflakes.



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