Investigated elementary school students' responses to two user-computer interfaces while the students solved basic arithmetic problems. Interfaces involved users' direct manipulation of images or interpretation of symbols. Data indicated that students were more comfortable and solved problems more quickly when manipulating images than when…

Parents and children interacted with computer-based representations of a park, one with animated picture graphics and one with digitized full motion video. Children who interacted with the digitized representation replayed the program more and showed a stronger cognitive focus on the representation than did the other children. (LB)