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Peer reviewedSicilian, S. P. – Journal of Visual Impairment and Blindness, 1988
Various counting tasks were presented to 24 congenitally, totally blind children, aged 3-13, to determine the behaviors employed to ensure accurate counting. Three dimensions of tactile strategies were found, including "scanning,""organizing," and "partitioning." A developmental progression in the ontogenesis of each…
Descriptors: Blindness, Child Development, Cognitive Development, Computation
Download full textHooper, Frank H.; And Others – 1974
A series of Piagetian concrete operations period tasks dealing with classificatory concepts was administered to 280 children (40 subjects from each of seven levels--preschool, kindergarten, and first, second, third, fourth, and sixth grades). Significant main effects for age were found for all the tasks. Few significant sex differences were…
Descriptors: Children, Classification, Cognitive Ability, Concept Formation
