Add a tricky twist to measurement math drills with this fun set of riddles.

The alligators are hungry for numbers, and kids use number skills to feed them.

Kids compare objects by their length and height to place them in the correct order.

Help out with the Twigs World Tour, and practice measuring with different units from both metric and standard systems.

Learn lengths with some wild and crazy shapes in this sorting game that sorts by length and height.

Kids practice measurement with a virtual ruler in this drag-and-drop game.

Kids must use a ruler to identify buildings and help Super Floyd save the day.

Kids practice estimation and working with a ruler in this colorful measurement game.