I use this lesson at the beginning of the year. It gives students ample time to develop and refine their knowledge, as well as their ability to self-monitor and adjust their physical exertion levels. Throughout the year, students will have the opportunity to demonstrate various methods to achieve their desired levels of physical exertion based on the type of physical activity they are participating in. As students learn about the various health benefits associated with active living, and about those related to different levels of physical exertion, they will have the opportunity to explore and reflect on their own efforts both in and out of school.