It is difficult to give a precise meaning to the term "concept" because to specify any sense to the term is already to be using concepts. It is impossible to talk about concepts without at the same time having made epistemological and metaphysical commitments. If the epistemological and metaphysical commitments are inadequate, then the…

Claims that people determine whether something is a member of a given artifact kind by inferring that it was successfully created with the intention that it belong to that kind. Discusses function-based and intentional-historical accounts of artifact concepts. Concludes that a rich set of inferential capacities is needed to constitute a theory of…

Maintains that there are core-specific and non-core-specific domains of knowledge, but that only the core-specific domains benefit from innate skeletal structures. Asserts that core skeletal domains are universally shared, even though their particular foci may vary. Emphasizes that individuals vary in terms of the noncore domains they acquire.…

Maternal involvement effects on symbolic play development in toddlers were investigated. Sixteen mother-child dyads were observed at bimonthly intervals in a free-play setting during the period from 20 to 28 months of age. The complexity and length of play episodes increased when the mother was available to play with the child. (Author/BN)

Describes the case of a woman who experienced disparity in mathematics classrooms between learning (which for her was necessarily relational) and its validation by a system that did not ratify meaningful learning but instead rewarded the behavioral products of rote or instrumental learning. (MKR)

Describes four alternative kinds of knowledge that differ from the mainstream concept of scientific knowledge. Argues that science, engineering, and bureaucratic institutions, under a common model of reality, often ignore and suppress these insightful kinds of knowledge. (Author)

Teachers of 9 and 10 year olds were found to use varied versions of lessons that increase conceptual understanding. Their effectiveness in supporting conceptual understanding was compared experimentally. Findings and implications for science teaching are discussed. (Author/DKM)

Examines the mathematical proof schemes of students starting their studies at the University of Cordoba and relates these schemes to the meanings of mathematical proof in different institutional contexts. Concludes that deductive mathematical proof is difficult for these students. Suggests that the different institutional meanings of proof might…

Proposes an account of mechanisms by which students develop knowledge structures for modeling the physical world with algebra. (Author/CCM)

This article explores the legacy of Paul Pintrich in regard to theory and research in conceptual change. Specifically, this article reviews his vision for a view of conceptual change--a vision that integrated motivation and affect within a broader view of cognition in the classroom (Pintrich, 1999; Pintrich & Sinatra, 2003). This article describes…

Effective teaching should focus on representational change, which is fundamental to learning and education, rather than conceptual change, which involves transformation of theories in science rather than the gradual building of knowledge that occurs in students. This article addresses the question about how to develop more efficient strategies for…

This investigation is part of a combined research/curriculum development project in which children's learning is being examined in the context of developing and testing instructional units on 3-D geometry in grades 3, 4, and 5. There are two components to the article. First, the strategies and cognitive constructions that students utilize to…

The world presented to our senses is essentially continuous in space and time. The simplest observations of children have shown that we are not born with ways of "breaking up" the world. The structures of our knowledge must be developed, and the major issue this paper considers is how those structures develop. The discussion focuses on Jean…

Explores the effects of Roundhouse diagram construction on a previously low-performing middle school science student's struggles to understand abstract science concepts and principles. Based on a metacognition-based visual learning model, aims to elucidate the process by which Roundhouse diagramming helps learners bootstrap their current…

Using conceptual change as theoretical lens, describes the structure of (n=4) learners' conceptual ecology within biological evolution and illustrates how this ecology influences the process of conceptual change. Prior conceptions relate to evolutionary theory, scientific and religious orientations, view of biological world, and acceptance of…