The connection between the molecular-level structure of a substance and its macroscopic properties is a fundamental concept in chemistry. Students in college-level general and organic chemistry courses were interviewed to investigate how they used structure-property relationships to predict properties such as melting and boiling points. Although…

The purpose of this study was to examine the ways in which elementary teachers applied their understanding of conceptual learning and teaching to their instructional practices as they became knowledgeable about conceptual change pedagogy. Teachers' various ways to interpret and utilize students' prior ideas were analyzed in both epistemological…

This study questions the effectiveness of a traditional teaching-by-example technique when used with students who hold misconceptions. Interview techniques were used to explore students' (n=21) responses to two different uses of examples and to provide indications of student reasoning. Results indicate that when students hold a misconception,…

The experimental/analogy group scored significantly higher than the control group on a posttest question that required the definition of diffusion (n=77 community college students). Hypothetico-deductive reasoning skill was significantly related to correct application of the diffusion concept to a change from the misapplication of the polarity and…

Administered questionnaires to 35 science teachers to test the hypotheses that teachers holding constructivist beliefs are more likely to detect alternative conceptions, have a richer repertoire of teaching strategies, use more effective teaching strategies for inducing conceptual change, and report frequent use of effective teaching strategies.…

This article aims to present the results obtained from science teachers about their attitudes toward students' conceptions and the use of teaching strategies based on these conceptions. The results may contribute to the planning of inservice courses. (Author)

For the past two decades, a growing amount of research has shown that the use of analogies in science teaching and learning promotes meaningful understanding of complex scientific concepts (Gentner, [1983]; Glynn, [1989]; Harrison & Treagust, [1993]; Wong, [1993]). This article presents a study in which multiple analogies were used as scaffolding…

Examines relationships between factors affecting high school students' (n=142) ability to acquire meaningful understanding of specific biological concepts. Assessment using mental modeling techniques showed a significant correlation between students' meaningful learning orientation and their understanding of a topic. Suggests that perhaps much…

The research reported in this study was done to evaluate the understandings developed by students who meet science concepts through a textbook. Findings indicated that concrete concepts were better understood by eighth grade students than formal concepts and that students achieved some understanding of some formal concepts. (CW)

Assesses students' learning of evolution by natural selection within four different sections of an introductory biology course where each section used a different combination of curricular materials and instruction. Reports that comparisons between sections support the use of paired problem-solving instructional strategy in conjunction with the…

When comparing performances across four versions of Computer as Lab Partner curriculum, increases in understanding were found when students predicted outcomes and reconciled results, and students used a heat-flow model of thermodynamics to integrate their experimental results. Argued is that curriculum must explicitly motivate students to…

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Reports a study (n=41) of the effectiveness of in-depth, conceptually integrated instruction delivered via a videodisc program in eliminating children's alternative frameworks in science. This curriculum, which did not directly address alternative frameworks during instruction, changed 92% of the alternative frameworks held by students to…

Reports a study involving interviews with 20 physics teachers to determine their awareness of student alternate conceptions in the areas of force and gravity. (PR)

Discusses the influence of a reflective, explicit, activity-based approach to nature of science (NOS) instruction used in an elementary science methods course on preservice teachers' views of some aspects of the nature of science. Finds that participants made substantial gains in their views of some of the target NOS aspects. Advocates a…