Discusses changes that are needed in the perceptual, cognitive, and aesthetic principles governing the medium of television to compensate for the high-quality, filmlike picture produced by high definition television (HDTV), or improved definition television (IDTV). Topics discussed include changes in visual perception, cognitive processes and…

Visual learning enhances cognitive understanding of abstract concepts. Perception of such ideas as causality is enriched by visual examples. Perceiving should not be separated from thinking. (SK)

Reading, writing, and computing, which are interrelated and can thrive on each other for literacy and intellectual growth, are in the process of becoming linked in instructional practice. As reading and writing become more demanding, their task is eased with computer use. The computer seems to provide the connection between composing,…