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Direct linkCurtis, Reagan; Okamoto, Yukari; Weckbacher, Lisa Marie – Early Childhood Research Quarterly, 2009
We examined preschool children's use of count information in making quantity judgments. Study 1 involved 35 children 3-5 years old using a balance-scale task to judge relative quantity with or without count information provided. Study 2 replicated and extended the exploration as 54 children 3-4 years old judged relative quantity in multiple…
Descriptors: Cues, Preschool Children, Computation, Evaluation
Peer reviewedOkamoto, Yukari – Cognition and Instruction, 1996
Tested three models of children's mathematics word-problem solving based on developmental differences in quantitative conceptual structures: (1) quantitative relations represented as ordered array of mental objects; (2) numbers represented on two tentatively coordinated mental number lines; and (3) numerical operations represented as objects on…
Descriptors: Age Differences, Children, Cluster Analysis, Cognitive Development
