In this paper, results from a subset of the Purdue Spatial Visualization Test and a self-efficacy test developed by the authors are presented to determine whether certain object shapes, orientations, and types of rotations in standard spatial ability tests cause more difficulty than others and whether a solid object, which includes shading to…

A developmental curriculum project is summarized which investigates the feasibility of using the PLATO computer assisted instruction (CAI) system to assist in the presentation of material in a geometry course which requires pictorial responses by the student. Geometrical concepts such as congruence, symmetry, perpendicularity, parallel, triangle,…