We are evaluating electronic classrooms used to support collaborative strategies for learning. The classrooms feature a network of 20 workstations built into the desks to support as many as 40 students. Two large screen projectors enable instructors to show computer demonstrations, student workstations, video, or other images. Text, graphics, and video are shared on the network, thereby enabling instructors to distribute class notes, homework assignments, etc. The AT&T Teaching Theater and the IBM-TQM Teaching Theater provide an unusual opportunity to investigate the application of hypermedia and collaborative groupware to lecture and college seminar environments. Educational issues involve the appropriate mix of multimedia materials, anonymity and disclosure of ideas, and learning to navigate versus navigating to learn.