K – CO – OE13

Two items are the same length. What could the two items be?

K – CO – OE14

Two items are almost the same length. What could the two items be?

K – CO – OE15

Two items have much different lengths. What could the two items be?

K – CO – OE16

It is hard to measure the length of two items. What could these two items be?

K – CO – OE1

All three towers have a different length. Two of the towers are closer in length than the third. What could the three towers look like?

Subscribe To Our Newsletter

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

You have successfully subscribed!