Uses extremely strong neodymium magnets to demonstrate several principles of physics including electromagnetic induction, Lenz's Law, domain theory, demagnetization, the Curie point, and magnetic flux lines. (MDH)

Presents the result of an empirical study on the reception and effectiveness of historical material being included in the physics program of a Swiss high school. (Author/NB)

Describes an experiment in which students work together in small groups, take data, and make a calculation to roughly determine the diameter of the blind spot in their eye. (WRM)

Describes an educational project primarily aimed at teachers and 15 to 18-year-old students that describes the essential features of a modern high-energy physics experiment. (Author/CCM)

Describes a laboratory activity in which students speculate about the extent to which Galileo actually performed an experiment to determine that all pendulums of a given length have the same period, independent of amplitude. (WRM)

Explains how a school developed a model for ensuring progression in experimental and investigative science. Provides progression steps and examples of models. (CCM)

Examines the impact of the national curriculum on secondary school science teachers' work in England and Wales. Finds that, in a significant number of schools, less time is spent on practical activities in the laboratory and students are presented with a narrower range of laboratory activities. Concludes that many teachers judge the national…

Suggests that scientific thought experiments (TEs) draw upon three epistemological resources: conceptual-logical inferences, visual imagery, and bodily-motor experience. Argues that TEs are powerful because of students' thought capabilities related to imagination and visual imagery. Claims that TEs are not currently exploited by school learning…

Describes experiments with electrostatics that are convenient for classroom demonstrations or laboratory activities. These experiments use a Kelvin balance and a relatively inexpensive electronic scale with 0.01-g sensitivity and essentially stationary pans. (WRM)

Outlines a course based on a series of experiments in which students are introduced to the behavior of electrical components without any references to Ohm's law. Argues that this approach has advantages over the traditional presentation. (DDR)

Analyzes student discourse in 4 grade-12 lab groups working on microcomputer-based laboratories. Analysis reveals the role the computer plays in the group context and the ways that this context is shaped by the computer. Contains 22 references. (Author/JRH)

Presents a three-week interdisciplinary unit for starting the school year that focuses on the concept of flight. Enables students to acquire knowledge and develop process skills that they need later in the semester. (JRH)

Describes activities for starting the school year that allow students to begin learning laboratory skills and also gives them a chance to meet and interact with classmates in a relaxed atmosphere. (JRH)

Describes a series of 14 hands-on, low-cost exercises in plant sciences developed to support biology teaching and maintain student interest. Each exercise includes education objectives, biology background, detailed procedures, and topics to stimulate discussion and critical thinking. (DDR)

Presents an alternative way to teach chemistry by using transmuted laboratory activities in which students must predict outcomes within a certain error factor. Includes nine sample labs. (MKR)