ABSTRACT

The traditional lecture hall is a physical environment that has been optimized for the delivery of information by an instructor standing in the front to a class seated in a regular array throughout the room. Amphitheater-style lecture halls with steeply arranged ranks of seats are designed to make the unamplified voice

of the lecturer clearly audible to every member of the audience. Add a blackboard (these days, a white board), a projection screen, and slide, overhead, and video projectors, and you have an environment in which information (auditory and visual) readily flows from the front of the room to the furthest corners of the lecture hall.