P – M – OE12

The perimeter of a quadrilateral was the same as the perimeter of a five-sided shape. What could the side lengths be for each shape?

P – M – OE1

Draw two line-segments that are close in measurement. What is the length of each line?

P – M – OE2

Draw two line-segments that are far apart in measurement. What is the length of each line?

P – MC – OE14

You have a collection of bills. Some bills are the same and some are different. What is the value of all these bills?

P – MC – OE15

You have a collection of coins. Some coins are the same and some are different. What is the value of all these coins?

Subscribe To Our Newsletter

Join our mailing list to receive the latest news and updates from Dr. David Costello.

You have successfully subscribed!