I use this on our annual pi day party & celebration. You will need to bring string and a tape measure (or yard stick, etc.) Have students bring circular objects. They will be calculating pi values, percent error, and a scientific report on their findings. These are editable slides so you can assign in Google Classroom and students type in answers. I normally throw a party with circular foods and games (after this is complete). I also have a printable PDF in my store. Yes - the price is the squ