This powerpoint it meant for college / high school anatomy and physiology classes. It is a broad overview of all the aspects of the endocrine system. It is taught in a "science made simple way" and has the opportunity for the instructor to insert their own details where they wish. I use this unit to teach a college class for three 1.5 hour lectures. I like to give students time to reflect after each major concept so they can understand before moving on. These pair with my student "study sheets"!