This lesson plan introduces students to the concept of supply and demand by appealing to bodily/kinesthetic intelligences. Students participate in a fitness class and then analyze the economic motives behind making an individual feel better after a fitness activity; i.e., analyzing how much an individual would pay for a drink and snack after a workout. The lesson seeks to develop skills and a comfort level in interpreting economic concepts through graphic analysis. It provides a content objective and a process objective; cites two economics standards; gives background information; lists materials needed; suggests class duration; details an agenda for the lesson; and suggests closure. (BT)