This article describes some aspects of Piaget's Theory of Cognitive Development. It highlights the importance of giving young children specific access to explore conservation in measurement, which will give students invaluable experiences in measurement that in years to come will be regarded as their prior knowledge of the concept. This is…

A total of 4six children with a mean age of 6 years were randomly assigned to either a standard or modified testing condition in order to assess their conservation judgments. Significantly higher levels of "conserving" judgments were obtained in the modified condition. (Author/CI)

Use and understanding of dimensional language facilitated conservation. (ST)

The results of four studies involving three to seven year olds revealed that, by age three, some children (1) appreciated conservation of matter despite visual disappearance and the existence of invisible particles; and (2) made use of the particle concept to explain how a particle can continue to exist and maintain its properties despite visual…

In a longitudinal study conducted in Reykjavik, Iceland, 60 male and 61 female subjects were tested at 7, 8, and 9 years of age in order to investigate their comprehension of three concrete-operational concepts (conservation, class inclusion, and logical multiplication). This report focuses on a logical reconstruction of the developmental sequence…

The strength of the tendency of children (aged 4 1/2 to 7 1/2 years) to give phenomenist reading of neutral questions about object properties was investigated. Phenomenist answers decreased with age, and social dominance and conversational context affected answers. (SKC)

Three- to 7-year-old children were trained through reinforcement to select the more or less numerous of two rows of squares. All children successfully judged relative numerosity when number covaried with length or density, but only concrete operational children were successful when numbers did not covary with other dimensions. (Author/DB)

Piaget's conservation paradigm was used to assess five- to seven-year-old children's understanding of the permanence of various kinship roles. Children's conservation was studied by applying certain transformations on single- and multiple-kinship role combinations. Kinship conservation developed gradually in this age range. Females' performance…

Event-related potentials (ERPs) of five- to seven-year-old girls were measured while the girls performed a visual selective attention task and a Piagetian conservation task. Results suggested more anterior ERP sources for nonconservers than conservers during early stimulus analysis, and more lateralized ERP sources for conservers than…

Data on the conservation of discontinuous quantity are analyzed according to two different criteria: judgment only and judgment plus explanation. The results are discussed in terms of Piagetian theory and particularly of the assumption that language development is a consequence, and not a cause, of cognitive development. (Author/KC)

Describing the processes that characterize children's thinking at successive stages of development, Jean Piaget's theories provide guidelines for the study of the intellectual development of children. These conference proceedings relate Piagetian theory to the helping professions. Through the use of panel discussion, symposia, test demonstrations,…

To investigate the development of function concepts and their relation to mathematical and logical abilities typically acquired during the age period of five to seven years, children were tested on nonnumerical function tasks, numerical tasks, and aspects of logical reasoning. (PCB)

A former editor of this journal, 1967-69, selects an outstanding article from her tenure for its significance as the beginning of important studies in mathematics learning in young children. The article selected presents a modified technique for assessing a young child's acquisition of length conservation while eliminating or reducing the…

Implications of this study on child-development theory, education, and psychotherapy are discussed. (MB)