Describes a series of studies conducted to determine what types of visuals are most effective in facilitating student achievement. This program of systematic evaluation analyzed an instructional unit on the heart on the basis of instructional effectiveness, economy, and simplicity of production. Conclusions and a list of studies are included. (RAO)

The role pictures and graphics can play in making Telidon, a Canadian home information retrieval videotex service, a viable communications medium is discussed. This report concentrates on contributions of theories of perception and cognition to knowledge of how different kinds of visual images can most effectively be used on Telidon. The issues of…

This study compared childrens' apprehension of an unfamiliar story either read to them from an illustrated book or presented as a comparable televised film. Subjects were 48 children, 24 of them six to seven years old, and 24 nine to ten years old, who were randomly assigned to one medium condition and individually presented the story. Response…

The purpose of this study was to investigate the difference in cognitive and affective responses of eighth grade students to a short, educational film and to a videotape presentation of that film. The cognitive response involved students' understanding of such story elements of the film as plot, setting, character, mood, and theme. The affective…

Describes study designed to evaluate the effectiveness of interactive videodisc program Mastering Fractions. The videodisc program is compared with traditional fractions curriculum and teaching methods in sixth grade classes; pretests, posttests, and mastery tests used are discussed; and results of the study are analyzed. (LRW)