Suggestions are provided for using color television projector systems to demonstrate color mixing. With such a projector, manipulation of the three primary colors can be done by simply covering and uncovering the three separate beams. In addition, projector systems serve as good examples in studying geometrical optics. (Author/JN)

Pointing out that quality large-screen television projection, although it may be satisfactory, is still inferior to that of 16mm film, this article describes the characteristics, costs, advantages, and disadvantages of different types of systems. Specific models of each type are mentioned. (CHC)

This paper details the considerations involved in determining suitable video projection systems for displaying the Apple Macintosh's screen to large groups of people, both in classrooms with approximately 25 people, and in lecture halls with approximately 250. To project the Mac screen to groups in lecture halls, the Electrohome EDP-57 video…

Describes a mobile classroom presentation cart for multimedia technology that was designed and constructed at the University of Delaware's Instructional Technology Center. Design goals are discussed; the physical layout is explained; equipment choices are described, including computer, audio system, and projection system; and future development is…

A new technique described as computer augmented lectures (CAL) is being used at the University of Texas at Austin. It involves the integration of on-line, interactive, time sharing computer terminals and theater size video projectors for large screen display. This paper covers the basic concept, pedagogical techniques, experiments conducted,…

The high cost of providing on-line computing to all students individually makes it necessary to use some means of group viewing of one user's interaction with the computer. While the author suggests that group viewing of computer output is not a replacement for individual direct experience with the computer, it can be a useful and economical…