Surveys of and interviews with year-12 students in Northern Ireland over 10 years examined the impact of government science education policy by noting student participation in advanced science courses. Overall, the number of boys taking advanced courses decreased and the number of girls increased. Students retained certain stereotyped views of…

Describes the development of Model-It, a ScienceWare software tool developed by the University of Michigan in collaboration with high school science teachers to support learners in building qualitative models and then move to more quantitative models. Highlights include modeling versus simulation and assessing the impact of Model-It. (LRW)

The first six years of a new program to organize high-level scientific research training for gifted high school students in Hungary are described. Besides giving top-level research opportunities for talented students in their most receptive age, the program has already helped the establishment of almost two hundred scientific research clubs.…

Geometric axioms are discussed in terms of philosophy, history, refinements, and basic concepts. The triumphs and limitations of the formalism theory are included. Described is the status of high school geometry internationally. (KR)

Presented is the extent to which pupils of different ages tend to confuse scientific and everyday meanings of "Law" and "Conservation." The concepts of resource economy, environmental concern, and the law of conservation of energy are discussed in terms of potential teaching difficulties. (KR)

Identified are some of the problems experienced by students when learning about organic chemistry reaction mechanisms. Strategies are suggested which may be used by students to facilitate understanding of these mechanisms. (KR)

Discussed is whether, and to what extent, science teachers critically and spontaneously attend to the logical structure of situations, and whether they need prompting, or completely fail to do so. The relationship between the results of this study and science teachers' pre- and in-service education is discussed. (Author/KR)

The purpose of this investigation was to evaluate the effectiveness of six instructional programs with the aim of alleviating the problems encountered by students in visualizing rotation in molecular diagrams. Models were filmed rotating around the three different axes with different speeds with and without shadows. (KR)

Described in this article is a problem-solving activity which integrates the application of microcomputers with the learning of physical chemistry. Students use the program with spectroscopic data to calculate the thermodynamic properties and compare them with the values from the thermochemical tables. (Author/KR)

Reported is a case study of environmental education students (19) at Johannesburg College of Education. The case study used a phenomenological approach. Reasons for the evaluation design and results of the evaluation are included. (CW)

Presented is an activity which uses the annual process of abscission and leaf drop to illustrate all of the phases of the scientific method. Procedures, hypothesis formation, and typical results and conclusions are discussed. Alternative activities are suggested. (CW)

Described is a series of workshops designed to familiarize teachers with the social and legal background, principles of humane care, ethical considerations, and philosophies that influence animal use in the classroom. Discussed are the value of dissection, alternatives to dissection, and student reactions to dissection. (CW)

Presented are 29 science activities for secondary school science instruction. Topic areas include botany, genetics, biochemistry, anatomy, entomology, molecular structure, spreadsheets, chemistry, mechanics, astronomy, relativity, aeronautics, instrumentation, electrostatics, quantum mechanics, and laboratory interfacing. (CW)

Reviewed are four computer software packages: "Minerals Data Base"; "Canvas 2.1," a graphics program for producing technical illustrations; "Glossary of Geology Speller"; and "PCUSA," which produces maps and statistical diagrams of the United States. Hardware requirements, functions, cost and availability…

Eight activities for use in the science classroom are presented. Included are insect collecting, laboratory procedures and safety, recycling, current events, variable manipulation, scientific method, electricity, and mechanics (Newton's Second Law of Motion). (KR)