Presented is a study which focused on using turtle graphics programing for geometric problem solving. The goal was to investigate changes in children's mathematical knowledge and results indicate that the LOGO environment enriched children's geometric conceptualizations and sophistication of their geometric thinking. (KR)

This review of the research on Logo use with pre-high school students highlights programing and learning stages, cognitive requirements, and effects of Logo programing on social-emotional development, achievement, and problem-solving abilities. (MBR)

The use of calculators in helping students to construct their own learning is discussed. Two games which illustrate this concept are presented. The features of a constructivist lesson which uses calculators are listed. (CW)

Investigated development of ability to recognize, anticipate, and plan the replay of recorded action sequences. Effects of an educational intervention on this ability were evaluated for two- to five-year olds. Results suggest that representational competence is a teachable concept and that a complex mediating structure allows children to…