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A Developmental Study of Piaget's Groupement Model of the Emergence of Speed and Time Concepts
Peer reviewed Peer reviewed
Weinreb, Neil; Brainerd, Charles J. – Child Development, 1975
Three key predictions of Piaget's groupement model of middle childhood cognition were examined in the speed and time concept areas with a total of 93 children in grades 1, 2, and 3. (ED)
Descriptors: Cognitive Development, Concept Formation, Developmental Tasks, Mathematical Concepts
Development of the Search-Processing Parameter.
Peer reviewed Peer reviewed
Keating, Daniel P.; And Others – Child Development, 1980
Examines the role of basic cognitive-processing efficiency as the source of developmental variance in cognitive performance. Two experimental tasks, memory and visual scanning, were used to investigate age effects on the search-processing parameter. Subjects were 9-, 11-, 13-, and 15-year-old children. (CM)
Descriptors: Adolescents, Age Differences, Children, Cognitive Ability
The Development of Children's Understanding of Proportions
Peer reviewed Peer reviewed
Chapman, Robert H. – Child Development, 1975
Children in grades 1, 3, and 5 and college students were given a variety of judgment tasks contrasting the comparison of quantity with the comparison of proportions to determine whether the understanding of proportions develops before formal operations. Results indicated that the comprehension of abstract relations requires formal operations.…
Descriptors: Abstract Reasoning, Cognitive Development, College Students, Concept Formation