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Constructivism as a Model for Cognitive Development and (Eventually) Learning (Orange Juice Experiment): The Development of Proportional Reasoning in the Child and Adolescent.
Noelting, Gerald – 1978
This study examined the development of the rational number concept as a ratio. Preliminary to the description of the study is an introduction discussing constructivism and equilibration. The study itself tests whether equilibration theory holds, and if so, what is the nature of its "phases" and whether these are found at each of the "periods" of…
Descriptors: Abstract Reasoning, Cognitive Development, Concept Formation, Developmental Stages