The learning of categories by six severely handicapped students (8 to 18 years old) was measured within the context of manual sign training. As expected, results supported the best example theory of categorization which suggests that some objects are more representative of their category than others. Implications for classroom material selection…

The author examines Novak's position that science and mathematics educators should discard Piaget's theory of intellectual development in favor of Ausubel's theory of meaningful learning as a guide for teaching practice and research. (PB)

Examined was the attainment of projective spatial concepts of third-, sixth-, and ninth-grade students. Eight Piagetian-type tasks were developed to provide evidence for Piaget's model of groupings of mental structures dealing with time and space. Task performance among grade levels and gender was examined. (CS)

This discussion centers around the dangers in making too precise a particular concept in educational psychology that distinguishes between two types of understanding, instrumental and relational. (MP)

Pairs of elementary school children at different concept development levels were given problems to discuss, in order to examine the prediction, derived from the equilibration model, that when two children holding different beliefs must arrive at a consenus, the child possessing the higher level of cognitive development will prevail over the child…

Participants aged 17-26, 39-51 and 59-76 solved concept problems to investigate intellectual correlates of concept identification as a function of stage of learning in adulthood. Differential ability-performance relations as a function of stage of learning were considerably less potent in the elderly v the young and middle aged. (Author)

As a child develops, perceptions of the world and idea concepts change, but creative expression and innovative thinking can be encouraged by the teacher at each stage of the child's development. (JD)

In everyday teaching, the mathematical meaning of new knowledge is frequently devalued during ritualized formats of communication and replaced by social conventions. Specific aspects of the problem of meaning development were investigated in two second-grade teaching cases. These were used to develop decisive requirements for maintenance of an…

The literature on the effects of congenital blindness on infants' development of motor functions and concepts of object permanence is reviewed. The article questions the idea that infants must first develop an object concept before sound clues alone will elicit reaching. Possible interventions to redress the effects of congenital blindness on…

Examines the influence of sign language structures on the spontaneous use of time and space markers in French and French Sign Language. The study compared the use of nonspatialized utterances and spatialized structures of deaf and hearing children, adolescents, and adults. Findings shed light on the different types of errors in understanding. (17…

Two studies explored how mothers and preschoolers talk and reason about events in which biological and nonbiological objects change in size. Analysis of conversations indicated that although mothers discussed events primarily in domain-specific ways when using the term growth, they exhibited some domain blurring in explanations to preschoolers.…

Describes young children's thinking about geometric shapes and discusses implications for teaching and learning. (KHR)

Examines the degree to which implicit memory performance is dependent upon the storage of specific perceptual information in a sample of 4-, 5-, and 10-year-old children. Suggested that the processes that subserve pictorial repetition priming and recognition memory develop at different rates, and that such priming is dependent upon access to…