In this classroom activity, younger students compare their feet to the footprint of a large Apatosaur. The activity opens with background information about the enormous size range of dinosaurs and a discussion in which the students name some of the dinosaurs they know and describe how big they were. Then, each student will make an outline of their own footprint and fasten it onto the full-size Apatosaur print (which must be enlarged from the smaller drawing that is provided).

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Publisher: American Museum of Natural History, Resources for Learning
http://www.amnh.org/education/resources/