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Starkey, David – Child Development, 1981
Examines the issue of object sorting in early infancy. Forty-eight infants at 6, 9, and 12 months were presented with eight sets of small, manipulable objects. At six months, selective manipulation was absent; at nine months, 94 percent of the infants sequentially touched similar objects and at 12 months 100 percent did so. (Author/DB)
Descriptors: Age Differences, Classification, Cognitive Development, Concept Formation
Goodrich, Judy A.; Kinney, Patricia G. – 1985
Intended to assist teachers as they assess, plan for, and teach deaf blind students, this manual describes a process for adapting curricula for students who function within the 0-24 month developmental period, also known as the sensorimotor period. The manual's first section provides an overview of project activities including the literature…
Descriptors: Concept Formation, Curriculum Development, Curriculum Enrichment, Deaf Blind