Study indicates that for children, but not for adolescents, the number of concepts produced was inversely related to the level of abstractness of the stimuli. (Author/MG)

Results support view that development of part-whole perception is mediated by logiclike perceptual regulations. (MH)

Presents a stage-structure analysis of reading applicable to any method of reading a teacher might choose to use. (Author/MP)

The author introduces some constructs that provide a linkage between the Piagetian theory of cognitive development and curriculum analysis: externalization and automatization; the intellective unconscious; and the logical substructure of the task. He then offers some examples of developmental analysis of secondary level curriculum materials.…