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Clements, M. A.; Del Campo, Gina – Focus on Learning Problems in Mathematics, 1989
Investigates children's cognitive structures with respect to concepts one-half, one-quarter, and one-third as these apply to continuous circular and triangular regions. Examines the effect of an intervention program with 21 children in grades three through six. (YP)
Descriptors: Elementary School Mathematics, Foreign Countries, Fractions, Geometric Concepts
