Describes virtual realities as environments in which visual, aural, or other stimuli generate in the mind of the user a sense of navigable, frameless, three-dimensional space, and predicts that the availability of computer technology to create real-time, three-dimensional graphics will bring radical changes in the educational use of visualization…

This document briefly reviews four areas of educational inquiry. The first section is concerned with definitions of the terms "spatial ability" and "visual imagery"; the second is concerned with training studies in which attempts have been made to improve spatial ability or to encourage greater use of visual imagery in problem…