The conceptual categories that children have developed in their second year were studied in five experiments using object manipulation tasks. Subjects included 152 children from 18 to 31 months of age. These very young children had formed global conceptions of many domains of objects. (SLD)

Discusses the development of the human hand from birth to age three as it contributes to the formation of human personality. Considers how parallels in eye, hand, brain, and motor skill development portray the evolving complexity and adaptation of the human grasp and illustrate Montessori theories about the relationship between physical experience…

The differences between school learning and other learning are discussed. To make these types of learning more similar, schools must develop students' skills slowly and must stress practical problem solving. Education then will be fulfilling its cultural function of promoting reason and analysis based on shared knowledge. (VM)