Speed

For short bursts, cheetahs can reach a running speed of approximately 70 miles per hour. Readers will learn how to measure this incredible speed through a thorough explanation of a simple formula. Relatable examples and math problems accompanied by colorful photos and illustrations will guide readers through imperial and metric units as well as key speed measurement concepts such as acceleration and rotation. A fun concluding activity will coach readers through measuring their own speed--and they'll be running to check their times against exciting facts in the book.