Digital lecturing systems (computer and projector, often with PowerPoint) offer physics instructors the ability to incorporate graphics and the power to share and reuse materials. But these systems do a poor job of supporting interaction in the classroom. For instance, with digital presentation systems, instructors have limited ability to…

Discusses possibilities for the application of telepresence to physics and teaching. Telepresence allows a computer user to effectively be present at some other location through the use of remote cameras, sensors, and controls. (WRM)

Describes attempts to move physics discussions out of the classroom and onto the Internet where students can participate any time through the use of an electronic message board. (WRM)