In response to an article in the same issue by Norris and Kvernbekk, argues that the theory of Driver and associates, elaborated upon in the three articles which form the basis for their analysis, is not a normative goal-directed theory. (DDR)

Comments on the consequences of the death of the rationalist dream, including a loss of nerve in science education that leads some people to doubt the point and the value of teaching science. Argues that the death of this dream is irrelevant. Contains 57 references. (DDR)

Argues that scientific knowledge in school is a social construct in which curriculum proposals are simply points of departure that are transformed by the social interaction that takes place within the classroom. Considers discourse as playing an important role in knowledge construction. Contains 31 references. (DDR)

Discusses concepts underlying media literacy programs; how media literacy fits into the language arts curriculum; and the strands of a media literacy curriculum: viewing and representing. Provides models of the viewing (decoding) and representing (encoding) triangles. Includes a third-grade lesson plan developing skills in analyzing holiday season…

Reports research that investigates the encoding that students use to develop molecular models at the undergraduate level. Focuses on the translation between symbolic and subatomic representations of molecules. (Contains 31 references.) (DDR)

Explores whether exposure to increasingly sophisticated mental models at different points in a chemistry education class showed up in patterns of preference and use of models in interpreting physical properties and phenomena. (Contains 92 references.) (DDR)

Presents a framework characterizing cognitive models generated by sixth-grade students for simple opening/closing control mechanisms, like the elevator door. The students' conceptions, missing conceptions, and misconceptions are analyzed at three levels: device knowledge; perception of the control process; and perceptions of information flow. (LAM)

Contributes to a reflection on the possibilities and the limits of a non-naive use of the history of mathematics for educational purposes. Discusses a problem related to the hypotheses that make it possible to confront past and modern conceptual developments. Contains 45 references. (DDR)

Reports on a technique used to enhance students' motivation to learn, their actual learning and application of information, and their ability to recall information for later use. The technique involves sharing learning and recall strategies with students. (DDR)

Reports research that examines children's models of seed. Explores the conceptions held by children (N=75) of germination and seed formation. Concludes that children hold a restricted meaning for the term 'seed'. (DDR)

Identifies certain conceptions regarding the science content studied by students aged 9-11 years and develops a strategy for altering these conceptions. Reviews research on misconceptions and defines action research. (DDR)

Reports the results of research that explores how scientific literacy sustains belief in pseudoscientific claims. The population of college biology students who were non-biology majors completed questionnaires which were assessed and used to plan instruction. (DDR)

Describes the design of an expert system developed using VP-Expert for document delivery decision making in a law library. Presents methods used in knowledge acquisition and knowledge representation after a brief review of the literature on expert system use in libraries. An appendix includes the rules of the expert system. (Author/AEF)

This research reports an algorithmic approach to the automatic generation of thesauri for electronic community systems. The techniques used include term filtering, automatic indexing, and cluster analysis. The Worm Community System, used by molecular biologists studying the nematode worm C. elegans, was used as the testbed for this research.…

Examines children's understanding of the variation of sunlight and heat of the sun as experienced on the earth related to the positions of the earth and the sun in space, while using a pictorial computer simulation of the phenomenon. Suggests that, through the exploration of the program, children seemed to follow a correctly directed conceptual…