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Children's Representations of the Development of Solids.

Peer reviewed

Potari, Despina; Spiliotopoulou, Vasiliki – For the Learning of Mathematics, 1992

Reports a study designed to identify 9 and 11 year olds' ways of drawing nets of solids and to provide opportunities for them to reflect on their models in whole class discussions. Results indicated that children's views of solids' nets progressed from more global and holistic to more quantitative and analytic. (MDH)

Descriptors: Cognitive Development, Cognitive Processes, Cognitive Structures, Concept Formation

Overcoming Visual Obstacles with the Aid of the Supposer.

Peer reviewed

Yerushalmy, Michal; Chazan, Daniel – Educational Studies in Mathematics, 1990

Identified are three obstacles which students must overcome when examining and interpreting diagrams. The resources of the Geometric Supposer, a set of microcomputer tools designed to aid students, are outlined. The advantages of the use of this software are emphasized. (CW)

Descriptors: Computer Software, Computer Uses in Education, Diagrams, Geometric Constructions