Raises questions regarding what students are perceiving when concrete models are used to represent abstract scientific concepts. Discussion of several exploratory investigations on the role of models in science teaching is presented in three areas: (1) interactions with students; (2) effectiveness of models; and (3) spatial ability and models.…

Massachusetts's school-choice program has seen a significant flight of students and dollars from inadequately funded urban districts to wealthier suburban districts. Despite the Haverhill district's cutting-edge curriculum, many students have transferred because of school location and the district's racial composition. School choice is not a…

Presents examples of evaluation studies of visitor interactions with science museum exhibits. Example one involves application of existing findings about naive notions of motion to task of engineering a novel encounter with parabolic trajectories. Example two is a student project evaluating a prototype exhibit on light pipes and concludes that…

Argues that consideration should be given to whether teaching solubility product calculations is at all useful. Claims that experienced teachers seriously misunderstand and misuse solubility product calculations. (DDR)

Fourth-year university students (n=12) in a secondary-science-education degree program in Singapore were interviewed after demonstrations of five familiar chemical reactions. The majority of interviewees used perceptually-dominated rather than conceptually-dominated thinking and were unable to use scientific concepts consistently across the five…

Argues that science students often perceive physical events, the nature of scientific knowledge, and the nature of learning processes in different ways from science teachers and scientists, and that science teachers need to account for these differences in planning their science teaching. Contains 40 references. (WRM)

Describes a study of Greek high school students' (n=116) perceptions of the ozone layer. Finds that students have a good understanding of the position and purpose of the ozone layer in terms of protection from ultraviolet rays, but students also hold misconceptions linking the ozone layer to the greenhouse effect and other forms of local…

Explains the reasons for low U.S. score results on the Third International Mathematics and Science Study (TIMSS) and compares them with students from other nations. Swedish high schools scored highest on the science test, which is attributed to their curriculum. Suggests that the majority of students are taught science that is irrelevant for their…

Attempts to find connections and bridges between social constructivism and Piagetian constructivism so that both may be enriched, to the benefit of science teaching. (Contains 95 references.) (Author/WRM)

Investigates how scientists, from both a practical and epistemological perspective, communicated the nature and relevance of their research to classroom teachers. Determines the congruence and/or dissimilarity in how scientists described their research to teachers and how they viewed their research epistemologically. Concludes that scientists from…

Describes the development and use of two computer simulations for investigating systems thinking and environmental problem-solving in children (n=92). Finds that older children outperformed younger children, who tended to exhibit magical thinking. Suggests that seemingly isomorphic environmental problems may not be interpreted as such by children.…

Describes the professional development framework utilized in the Integrating Laboratory Instruction and Assessment (INLAB) project directed at changing teacher practice. The framework is based upon the establishment of an intellectual community of learners. (DDR)

Summarizes the results of a study of 40 high school students with grade point averages of 2.5 or greater who had never received formal training in economics. The students worked on problems involving basic economic concepts including productivity, profits, opportunity costs, and supply and demand. Discusses their misconceptions. (MJP)

Proposes that instruction targeted at conceptual change should be designed to consider cognitive development and capitalize on what is known about social development. Examines instructional strategies (Concept Oriented Reading Instruction, Discussion Webs, collaborative writing, learning logs, and divided page journals) that promote middle school…

Using research findings and statistics to support a policy argument often leads to misinterpretations and exaggerations of public school performance. Two experts illustrate this point by discussing examples of distorted high school drop-out rates, student performance on standardized tests, and international comparisons of U.S. and Japanese…