Let's Do Math!
Advice from the teacher:
Decide how many squares of each size are on a
checkerboard.
For example, there is only one way to put an 8 by 8 square on a checkerboard. How many ways can we put the other sized squares on the board? Drag the highlighted square around the
board and click on the buttons to get different size squares. Be sure to look for a pattern in the answers.

