Adapted Keil's predictability method to examine adults' and preschoolers' conceptions of numbers, focusing on the ontological distinction between numbers and sets of objects. Found that children, like adults, attribute spatial-arrangement properties to collections much more than to numbers, although both are considered to have quantitative…

Three experiments investigated the developmental progression of reliance on object function versus object shape to extend novel words among 3- and 5-year olds and adults. Findings indicated that children focused on shape, whereas adults focused on function when extending novel words, suggesting a developmental change in the consideration of these…

The present study builds on earlier work by Meyer and Land (2003) which introduced the generative notion of "threshold concepts" within (and across) disciplines, in the sense of transforming the internal view of subject matter or part thereof. In this earlier work such concepts were further linked to forms of knowledge that are "troublesome",…

Investigates Michael Polanyi's theory of emergence of the framework for tacit (personal) knowing, its function in the reasoning process, and the significant role art can play in the development of personal knowledge. States that intensive study of works of art will enable students to make discriminating choices that ultimately evolve into personal…

The purpose of this paper is to familiarize readers with Vygotsky's theory on verbal regulation of thinking skills, to describe related research and applications of the theory, and to explore its relevance for researchers, parents, and educators. (MT)

This article presents a new method of inferring students' cognitive structures and their development. A modification of Reitman and Rueter's "ordered tree technique," the method generates a structure that displays important relationships assumed to be in a student's memory about concepts taken from a specific field of study. (Author/LMO)

Two studies investigated the effect of language input on theory of mind by comparing the performance of deaf native-signing children (ages 4 to 8) raised by deaf signing parents and deaf late-signing children raised by hearing parents on "thought picture" measures of theory of mind. Findings indicated that deaf late signers showed…

Constructivist theory argues that students construct knowledge for themselves and that each knows the world in a different way. The problem for education is how students can construct an "objectified" knowledge. Outlines an integrative framework for the description of information and problem-solving procedures and a problem-solving…

Argues for the significance of "personal theories" in teaching. Profiles first year teaching of four teachers who had completed program of self-inquiry and reflection about their own developing conceptions of education. Describes their personal theories of teaching before employment and the nature and impact of their teaching…

In a study of 151 college freshmen of both sexes, cognitive complexity and learning orientation revealed gender-related qualitative differences within parallel cognitive structures. Different cognitive structures were accompanied by different learning orientations. (Author/TE)

Used a microgenetic method to examine knowledge acquisition as a process by coordinating existing theories with new evidence. Subjects were 17 community college students (ages 22-47) and 15 fourth graders. Assessed knowledge acquisition in problem solving in both physical and social domains. Found multiple strategies for, and varying levels of,…

Reports results of 14 studies on children's knowledge about thinking. Suggests that preschoolers appear to know that thinking is an internal mental activity that can refer to real or imaginary objects or events. However, preschoolers are poor at determining when a person is and is not thinking. This shortcoming is considerably less evident in…

To resolve tension between general stages and conceptual specificity in neo-Piagetian theory, R. Case introduced the idea of central conceptual structures. To resolve difficulties of separating developmental level and conceptual diversity, this article reconceptualizes central conceptual structures as self-organizing systems that stabilize in…

Comments on Lewis's ideas about reconciling stage and specificity in neo-Piagetian theory in this issue. Summarizes R. Case's central conceptual structure and its relation to other neo-Piagetian theories. Notes similarities between Lewis and Piaget, suggesting that differences adhere to a limited number of general laws instead of being…

Investigated the relationship between children's knowledge structures for peers and externalizing behavior problems. Evaluated initial aggression level in years 1, 6, and 9 of longitudinal study; evaluated social knowledge structures in year 6. Found that knowledge structures were related to children's concurrent externalizing behavior and…