Applications of this model to problems associated with basic phenomena in radioactivity, heat transfer, neutron chain reactions, RC circuits and vacuum pumping are presented. Example computations for each situation are included. (CW)

An outdoor activity that demonstrates the Doppler effect is described. Class predictions are verified by actual involvement in collecting data. Presented is a method of analyzing data. Safety concerns are discussed. (KR)

Student perceptions of the behavior of physics teachers in relation to selected variables in the classroom setting were investigated. High correlations between student perceptions of teacher behavior and affective outcomes are reported. (CW)

Reports on a survey which was undertaken to provide an overview of the biology content of a selection of General Certificate of Secondary Education science syllabuses. Lists syllabuses examined and the four themes in terms of which they were analyzed. Concludes that each contained a substantial biology component. (RT)

Describes a class activity, a game called "Beware--Radiation," developed as a framework for the introduction of the topic of radiation. Reports that both students and teachers had similar and mostly wrong preconceptions. (Author/YP)

Presents experiments which show that in electrostatics there are logical reasons for describing charged materials as positive or negative. Indicates that static and current electricity are not separate areas of physics. Diagrams of experiments and circuits are included. (RT)

Describes a computer simulation designed to examine secondary school students' strategies in solving a physics problem involving the velocity of a rocket. Students' beliefs about dynamics are discussed, use of the LOGO programing language to explore the idea of velocity is described, and ways in which simulations can support teachers' diagnostic…

Discusses a graphical analysis method used in the physics laboratory. Shown are various kinds of graphs to illustrate the relationship between two variables. A procedure for deriving equations from laboratory data is described. (YP)

Discusses making a computer-simulated rainbow using principles of physics, such as reflection and refraction. Provides BASIC program for the simulation. Appends a program illustrating the effects of dispersion of the colors. (YP)

Investigated is the value of preliminary high school experiences in physics and chemistry. Results indicate that the grades of students with more high school experience are no better than those of students with less experience and that less experienced students spend more time studying and take better advantage of tutors. (CW)

Describes how to make and use an inexpensive video disc of physics demonstrations. Discusses the background, production of the disc, subject of the disc including angular momentum, "monkey and the hunter" experiment, Doppler shift, pressure of a constant volume of gas thermometer, and wave effects, and using the disc in classroom. (YP)

Provides a poster which focuses on how electricity is made, distributed, and used by the community. Includes a vocabulary list with definitions, additional information, and illustrations on topics such as thermoelectricity, static electricity, and electric current. (RT)

Provides ideas on the use of toys to introduce scientific concepts. Describes lessons for laboratory activities using motion toys, synthesis activities for ending a unit, and other activities involving writing and speaking skills. (RT)

Demonstrates the inverted image, the chromatic aberration, and the floaters of the eye using an opaque 35mm film container with a small pinhole poked through the bottom. Describes the observation of Haidinger's brushes using polarized light. (YP)

Described is a curriculum project developed in Germany. The importance of playing and gaming for the acquisition of cognitive and social capacities, the relationships among acting, reasoning, and learning in physics instruction, and the spheres of subjective experience are discussed. The framework and evaluation of the curriculum are outlined. (YP)