In this video, zookeeper Michelle Hatwood of the Phoenix Zoo explains how she uses math in her work with hoofstock animals, which include antelope, deer, zebra, giraffe, and rhinoceros. In the accompanying classroom activity, students solve problems that involve calculating with and converting among metric and customary measurement units. To get the most from this lesson, students should be familiar with measurement units in the customary and metric systems and be able to use a calculator to multiply and divide decimal numbers.

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