Did you know that the ratio of the circumference (the distance all the way around) to the diameter (the distance across) of a circle always equal the same number? The number begins 3.1415, and no matter how many decimal places you take it to, it never ends!
Whether you're teaching online or looking for at-home learning ideas, we've got your number. Try these teacher-approved activities using simple household materials-no assembly needed. Write a "π-ku" A circumference divide by diameter irrational π - Paul Doherty Activities Cutting Pi String and scissors are all you need to find pi all around you.
