Erasmus was the first to act on the awareness that part of the new revolution would be felt in the classroom. He put the old oral scholasticism into his Adagia and Similia. The same situation confronts us. We are already experiencing the discomfort and challenge of classrooms without walls, just as the modern painter has to modify his techniques in accordance with art reproduction and museums without walls. We can decide either to move into the new wall-less classroom in order to act upon our total environment, or to look on it as the last dike holding back the media flood. Let us consider that the flow of information into the student mind (and our own as well) which was once oral, and then printed, could easily be controlled in the classroom. Today only a tiny trickle of the information flow into the student mind can be accounted for in the classroom. For every fact or attitude which the teacher can initiate or direct, the visual and auditory environment provides many thousands of facts and experiences.