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Sigel, Irving E., Ed.; Hooper, Frank H., Ed. – 1968
Theoretical and empirical research derived from Piagetian theory is collected on the intellectual development of the elementary school child and his acquisition and utilization of conservation concepts. The articles present diversity of method and motive in the results of replication (validation studies of the description of cognitive growth) and…
Descriptors: Abstract Reasoning, Children, Cognitive Development, Cognitive Processes