Second- and fourth-grade children viewed a cylindrical object in nine positions and identified the 90- , 180- , or 270-degree positions from a set of photographs. Perspectives in which the object differed from the child's view in both left-right and near-far dimensions were more difficult than perspectives that only transformed one dimension.…

This study examined the level of realism inherent in videotape and computer graphics display systems by comparing the ability of third graders, middle schoolers, and university students to estimate end states of visual transformations of spatial tasks. Their preferences for working with videotaped or computer-generated materials are also…