In several studies, primary school children worked in groups to solve physics problems. The groups were comprised of children who had similar or different levels of physics understanding. Results suggest a benefit to group work for groups of children with different levels of understanding, although the benefits may take some time to appear. (BC)

The author shows some causes of failure in the creation of mathematical concepts. One is the stiffening of concept cores, which prevents identification of atypical exemplars and solution of atypical problems and causes a bifurcation between the natural system of everyday concepts and the formal system of school concepts. (Author/MDH)

Argues that there is a need to develop dynamic systems for structuring data to create information access and for allowing users to incorporate that information into their own knowledge base. Describes a system built on a simple, powerful content model. (DDR)

Studies children's knowledge as revealed in extended conversations. Describes four types of conversations with young children who are learning science and technology. Contains 22 references. (DDR)

Presents an activity that provides a model of equilibrium with simple concrete examples. Uses an analogy that employs a box of matches and students in groups. (DDR)

Argues that the cognitive mechanisms in human creativity are, for the most part, sighted rather than blind. Reviews attempts to apply evolutionary ideas to psychology and argues that these ideas do not apply to the psychology of human creativity. An alternative sighted-variation framework is then proposed. (Author/CR)

Reports on a study in which a teacher used the collaborative development of a format-free computer database to facilitate knowledge construction in a group of three Year 6 students during a science project. Contains 28 references. (Author/ASK)

Presents an example section from a computer-science-integrated curriculum that was originally based on the Association of Computing Machinery (ACM) 1978 curriculum. The curriculum was designed to allow both instructors and students to move away from teaching and learning facts. (DDR)

Describes the development and implementation of computer-based multimedia techniques in organic chemistry courses. Provides technical details and some examples of student perspectives on the use of this technology. (DDR)

Students, ages 12, 15, 18, and 23 (n=60 per group), wrote definitions for 16 abstract nouns. Responses were analyzed for Aristotelian style. There was an increasing tendency for students to mention the appropriate category to which a word belongs, core features of the word, and subtle aspects of meaning. (DB)

Describes the Workplace Literacy Project which teaches mathematics to remedial and special education secondary students through a combination of conceptual approaches and problem-solving exercises anchored in the students' world. The approach also incorporates the use of calculators and computer software such as spreadsheets. (DB)

Presents an activity that employs movement to enable students to understand concepts related to plate tectonics. Argues that movement brings topics to life in a concrete way and helps children retain knowledge. (DDR)

Finds that children are naturally generative in their construction of explanations but that they use conceptions in quite complex and fluid ways. Argues that naive conceptions maintain a valuable function. Contains 43 references. (DDR)

Addresses the interface between two scientific disciplines, chemistry and physics, and suggests that learners do not readily integrate their knowledge across such domains. Recommends further research on how demarcations encourage learners. Contains 46 references. (DDR)

Describes the implementation of a concept practical in a physics class. Uses the example of students predicting and testing what will happen to the speed and acceleration of a ball rolling down variously-sloped railings. Some evidence of conceptual development was indicated by pre- and post-test scores. Suggests that a well-conducted class…