Lecture Four

Our talks so far will have shown you the necessity of including exact knowledge of the physical human being when you prepare your lessons. The reason we consider such apparently remote matters is the important step our school is taking in adding a tenth grade class to the present elementary grades. In the tenth grade class we shall have girls and boys who are already more mature, who are at an age that will have to be treated especially carefully. I would like to spend the next few days in giving you a thorough understanding of this age when, as you know, important developmental stages occur.