Presents a lesson that addresses the scientific aspects of the evolution versus special creation controversy by having students gather evidence from the fossil record and analyze that evidence using critical-thinking skills. Contains 13 references. (WRM)

Identifies and clarifies an interpretation of scientific discourse that can be used as a lens for viewing problems of teaching science. Discusses why reform visions for science education are reasonable, desirable, and yet problematic in lower track classrooms. Presents data to explain and characterize lower-track science-classroom discourse.…

Describes a modification to an inexpensive pinewood derby car that can be used to demonstrate the summation of the force vectors important in sailing. (WRM)

Describes children's interactions with exhibits and each other in a school-based, science-focused mini-museum. Suggests that although children did appear to make some gains in their learning and scientific skills and processes, the largest gains were made in the development of positive attitudes towards science. Contains 22 references. (Author/WRM)

Reports on the effects of constructivist versus traditional teaching approaches on university students' learning about osmosis and diffusion. Students understood diffusion and osmosis more deeply in the constructivist-informed classroom, which used small discussion groups rather than traditional large lecture groups. Suggests ways to improve…

Reports the existence of patterns of reasoning that are common to students' conceptions in different areas of mechanics. Finds that the common frameworks between different ideas have a generality level that lies between Piaget's stage theory and the approach of alternative conceptions. Contains 30 references. (Author/WRM)

Describes positive experiences in teaching about floating and sinking with second-grade students. (WRM)

Describes the construction of a device used to assist a physically disabled student with using the right-hand rule in a physics course. (WRM)

Investigates conceptions of the geosciences held by a university geology instructor and five students before and after a teaching intervention. Argues for the use of repertory grids to elicit personal constructs. Advocates targeting the societal aims of geological education within a constructivist framework. Contains 54 references. (Author/WRM)

Explores African students' use of traditional Sotho cultural metaphoric reasoning in classifying everyday situations as "hot" or "cold" in order to document the extent to which such metaphoric reasoning is related to science misconceptions of heating. Finds that university students were able to distinguish between types of…

Discusses research on the effects of having high school students (n=91) read four popular media reports of science. Finds a lack of systemic relationship between students' degree of certainty in their beliefs and the support that the reports offer for those beliefs due to the fact that students seemed unable to fully integrate their background…

Presents protocols for setting up a Winogradsky column and biofilm slides, interpreting the chemical transformations that occur in the column as a result of color changes in the soil, identifying common microorganisms, and determining the microbial composition of the column over specified intervals of time. (WRM)

Argues that science should be taught in a conceptual manner in elementary and middle school, after which (and only after) formulas, concrete strategies, and specific, isolated facts should be taught. Discusses linear versus conceptual learning, how boys and girls learn, how middle school teachers can approach this, preparing new science teachers,…

Describes the difficulties that high school and university students have in thinking about force, identifying forces, and drawing force diagrams. Finds that students using a computer tutoring program made limited progress in learning to construct free-body diagrams because of their alternative conceptions and faulty teaching methods. Offers…

Describes the construction of an exponential decay graph that can be used in a science class to support discussions about the uses of radioactivity, its risks, limitations, and advantages. (WRM)