Lecture One

Consider a physics lesson. We are certainly not in favor of having apparati in our classrooms or of methodically developing experiments. Such methods can be employed, can even be very intelligent. It could be asserted that such an approach has proved itself and that a great deal is achieved by it. But the effect is short-term, and we cannot be concerned merely with short-term effects. What we intend to do is to provide the children with something that will benefit them throughout life. To succeed in this intent, we have continuously to enlarge concepts. We must, of course, teach the phenomena in optics and hydraulics. But we must also learn to be ready, at appropriate moments, to relate certain aspects of lessons to other things in life.