Have children count out how many paper strips they will need. For example, the T-Rex will need 25 strips. Take center group out in the hall, and let children lie pieces on floor, end to end. Discuss with the children how big the dinosaur truly was. Ask children to estimate how many children's bodies it would take to equal the one dinosaur.
Record guesses on poster.
Lie children on the ground, head to toe, and find the true answer. Discuss results with the center group. Repeat with next center group using a new dinosaur. They should be able to estimate size better than when they started. Did they record the numbers correctly.