About This Lesson
Keeping the Beat has students in grades 3-5 measure and record their pulse rate before and after physical activity to learn more about the heart. Students have the opportunity to use a math model to look for patterns in the pulse rate data. They participate in a cardiac relay to deepen understanding of the circulatory system and make observations of gravity's effects on a water balloon to learn about its effects on water in the body. Thinking and acting like scientists and engineers, students learn more about the design of exercise equipment to keep astronauts healthy in space.
