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Siegler, Robert S. – Child Development, 1988
Issues include consistent individual differences in children's strategy choices, interpretation of differences within a framework, and the relation of differences to standardized test performance. (RJC)
Descriptors: Academic Achievement, Addition, Cognitive Processes, Elementary Education
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Booth, Julie L.; Siegler, Robert S. – Developmental Psychology, 2006
The authors examined developmental and individual differences in pure numerical estimation, the type of estimation that depends solely on knowledge of numbers. Children between kindergarten and 4th grade were asked to solve 4 types of numerical estimation problems: computational, numerosity, measurement, and number line. In Experiment 1,…
Descriptors: Individual Differences, Individual Development, Numbers, Computation