Measure a Watermelon

Materials Needed:
Yarn
Scissors
Watermelon

What to Do:
Provide children with yarn and scissors.
Instruct children to look at the watermelon and cut a strand of yarn that they believe will fit around the watermelon.
Invite each child to take turns placing their strand of yarn around the watermelon.
After all of the children who have participated in this activity has had a turn trying out the strand they cut, then measure the watermelon and cut a strand of yarn that measures the correct circumference of the watermelon.
Look at the children’s yarn estimations. Whose guess was closest? Whose strand is shortest? Whose is the longest?

* You may wish to place three labels on the wall “too short, “too long” and “just right”. Hang each child’s yarn strand under the correct label on the wall.