PBS
Pbs Learning Media: Meet My Muscles Upper Body Lesson Plan
Following along with their teacher, learners learn about the various upper body muscles we have such as the bicep and pectoral muscles and learn how to give them a good stretch and exercise.
National Institutes of Health
Nih Curriculum Supplement for Middle School: Looking Good, Feeling Good
A great resource from the Office of Science Education which provides a curriculum for teaching about the musculoskeletal system, the skin system and how they interact. This curriculum emphasizes choices teens can make to ensure good...