Learn how to use and read a pie chart with this KS2 Maths guide from BBC Bitesize.

What is Pi Day, and why do we celebrate it every March 14? Here's what to know as math lovers around the world mark Pi Day.

What’s Pi Day all about? Math, science, pies and more In 2009, Congress designated every March 14 to be the big day — in the hopes of spurring more interest in math and science.