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Peer reviewedSophian, Catherine; McCorgray, Patricia – Cognition and Instruction, 1994
Two experiments examined the development of children's understanding of part-whole relations. Found that five- and six-year olds evidenced understanding of part-whole relations, but four-year olds did not. Results support the conclusion that an understanding of the relationship between a superordinate set and the basic-level sets that comprise it…
Descriptors: Age Differences, Cognitive Development, Developmental Stages, Mathematical Concepts
