It's Pi day 2019! The day is 3/14 (if you are one of those people who write dates that way)
Join JK and some special guests as he explores maths, calculates Pi by hand and plays some appropriate music.
If you want to join in the fun, then fill out this form and we'll use your answers to calculate pi! https://goo.gl/forms/qgPFJf7uHOqBd8Wb2