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Nesher, Pearla; Hershkovitz, Sara; Novotna, Jarmila – Educational Studies in Mathematics, 2003
Identifies factors affecting problem solving strategies in the case of a multiplicative comparative situation involving three unknown quantities whose sum is known, and in which comparison relations between two pairs of the quantities are given. Proposes a model of the complexity of a word problem about such situation to analyze solution…
Descriptors: Curriculum Design, Instructional Materials, Learning Strategies, Mathematics Instruction

Sinclair, Margaret P. – Educational Studies in Mathematics, 2003
Investigates the benefits and limitations of using pre-constructed, web-based, dynamic geometry sketches in activities related to deductive proof at the secondary school level. Focuses on the relationship between the design of materials and the exploration process. Draws attention to the idea that pre-constructed dynamic geometric sketches and…
Descriptors: Computer Uses in Education, Curriculum Design, Deduction, Geometry