Examines the place of mental models in the process of knowledge construction, particularly by the relationship between mental models and computer models in that process. Analyzes and discusses children's use of spreadsheets to build their own computer models. Suggests that the process of building models on a computer may provide direct support to…

This study examined the assumption that optimal learning occurs in classrooms in grades one through four where every child has access to their own computers. Results of a multiple analysis of covariance showed that student writing samples showed the most improvement with a student-to-computer ratio of 2:1. (Author/LRW)

Discussion of group processes in computer assisted instruction highlights a research program being developed in the United Kingdom to explore computer groupwork with 9-to 12-year-olds. Variables to be considered in the research strategy are described, data collection methods are explained, and student attitudes and teacher roles are discussed. (24…