Described are the purposes, laboratory set-ups, and procedures of four classroom experiments: ultrasound speedometer; vibrating-bar depth gauge; folding three-dimensional model of equipotential surfaces; and a simple optical system for the reconstruction of images from computer-generated holograms. Diagrams and pictures are provided. (YP)

Described is the network and activities that accompanied the JASON Project in 1988. Discussed are the curriculum, broadcasts, and projections of future projects. Project sponsors and network members are listed. (CW)

The presentation of gas properties in terms of the qualitative-quantitative mode and gas law sequence is examined by analysis of 14 chemistry textbooks used in Australia and on questionnaires concerning teaching approaches by 104 teachers. Findings indicate that teaching involves minimal use of qualitative relationships of the gas laws and…

Reviews the objectives of laboratory work in chemistry education, current laboratory practice, and factors likely to impact on the nature of laboratory work in the future. Proposes that more investigation-style laboratory work be provided in order to foster the development of students' investigation skills. (Author/MKR)

Examines relationships between factors affecting high school students' (n=142) ability to acquire meaningful understanding of specific biological concepts. Assessment using mental modeling techniques showed a significant correlation between students' meaningful learning orientation and their understanding of a topic. Suggests that perhaps much…

Describes a laboratory activity "Observing Reactions in Solution." The activity can be used either as a laboratory or as a performance assessment for a high school chemistry class. (PR)

Describes an experimental sequence using the force probe to develop the relationship between net force and acceleration. (PR)

Presents a lab experiment to demonstrate application of the iterative capability of spreadsheets. Activity involves a variable spacing parallel-plate capacitor and an electrometer. (PR)

From a study of students in 7th through 12th grade it was concluded that salient external features of the problems, as well as factors related to the solver largely influence students' responses to the problems. The theoretical framework, however, is not the most influential factor in determining students' responses to the problems. (PR)

Presents performance assessments, written by a team of Wisconsin science teachers, designed to see if students know, have practiced, and are able to perform the skills associated with science problem solving. (JRH)

Describes activities for biology teachers that will stimulate discussions on virus structure, cell biology, rhino viruses, and new trends in treating the common cold. Provides opportunity for inquiry and problem solving in exercises that emphasize an understanding of how common cold viruses might pack inside nasal epithelial cells. (14 references)…

Presents the National Science Education Standards as an exceptionally well researched tool intended to assist teachers in curriculum development. Describes an activity that meets the standards and encourages students to work together. (JRH)

Argues against the forced use of generic lesson design in science instruction. Asserts that teaching modules are popular among administrators because they seem to provide accountability. However, modules often promote traditional ideas in teaching, and administrators seldom investigate claims of programs. Critiques research cited by the Hunter…

Contrasts receptive learning (rote learning) with meaningful learning. Explains that people construct knowledge based on what they already know. Concept maps are used to organize and represent knowledge and help the learner construct new meanings in a subject. Gives examples of concept maps created by scientists. (18 references) (PR)