Happy Pi Day! For those who are rusty on geometry, pi (the Greek letter π) is the symbol for a number that represents the ratio of a circle’s circumference (distance around) to its diameter (distance from edge to edge, through the center). The cool thing about pi is that it’s a constant; for all circles of any size, pi will be the same. And while pi has been calculated to over a trillion digits beyond the decimal point, most non-mathematicians round pi to 3.14—which is why March 14 is known as Pi Day and celebrated by math teachers and students worldwide!
Why not celebrate Pi Day to spark your children’s interest in and use of math in everyday life? Make a Pi Day pie, reinforcing terms like radius, diameter, and circumference while you roll out the crust! Or plan a Pi Day math scavenger hunt, in which kids follow clues to locations where they find math problems to solve. Be sure to give prizes! Whatever you do, make it fun—and celebrate with Pi Day pie—even if it’s store-bought.
In honor of Pi Day, I’d like to share a tip for helping students solve math problems: using scrap paper. Picture this: it’s a hot summer day, and you want to fill the small pool in the backyard—but there’s no garden hose. You grab a bucket and fill it right to the brim, but by the time you walk to the pool, half the water has splashed out. ...