Tau Day is a fun day celebrated on June 28th to learn about a special number called tau (?), which is about 6.28. It's a different way to understand circles. Usually, people talk about a number called pi (?) for circles, which is about 3.14. But some think tau is better for learning about circles because it's exactly twice pi. On Tau Day, people might eat tasty circle-shaped foods like pizza and pie and do fun math activities or talk about circles. It's a day to get excited about math and learn something new with friends!
How to celebrate Tau Day?
To celebrate Tau Day, you can bake a special round cake or pizza, since it's all about circles! Use decorations or toppings to make spiral patterns on them. You can also draw or paint pictures of circles and spirals. Invite friends to play games that involve spinning, like hula hooping or spinning tops. Make a paper chain with colorful loops. You can also watch a fun video about circles. If you love music, try making up a dance with lots of spins and twirls. At the end of the day, share what makes circles special and have a blast!

