Describes the relationship of Popper's theory of knowledge to chemistry instruction. Suggests that students be allowed to learn from their mistakes and presents five experiments with an implicit falsification purpose. (JN)

Determined if modifying Bloom's mastery strategy improves science achievement during a six week human physiology unit. Findings indicate only a small degree of improvement in achievement of 185 students. Suggests that the approach employed in this study would be impractical for the biology classroom. (DS)

Reports results of a study aiming to determine the initial levels of understanding of bioethical terms and concepts of college students. Data are summarized from the development and field testing of the Cognitive Biological Concept Assessment Instrument, which was administered to high school and college students and secondary science teachers. (CS)

Summarizes viewpoints on the use of animals in science experiments in the biology classroom, including those of teachers, education researchers, biomedical scientists, science education administrators, and animal welfare advocates. (Author/CS)

Describes an inexpensive physics apparatus and experiment to dynamically determine Young's modulus for thin reeds and wire samples. (HM)

Proposed is a new method for analyzing how concepts are used in the process of problem solving in science. Through the use of a "thinking aloud" interview technique, 21 tenth-grade students worked with a problem concerning the boiling point of water at the Dead Sea. Interview protocols were analyzed to develop students' concept profiles.…

Described is a science experiment involving the isolation and study of microorganisms. Bacteria from the mouth are cultured on blood agar culture plates and are then exposed to four different mouthwashes to test their effectiveness. (DS)

Uses the irruption theory in explaining the occurrence of the Darwin finches in the Galapagos Islands as an example of how alternative theories can be presented in an educational setting. Advocates the comparison of alternative theories to encourage creative thinking and a critical attitude. (CS)

Cites recent experiences of the Leeds School Science Industry Liason Committee in organizing contacts between schools and industry. Procedures are discussed for developing kits of teaching materials based upon local industries. (CS)

Describes the tasks of the Industry/Education Unit (IEU), established within England's Department of Industry to deal specifically with changing the attitudes of young people toward industry. (CS)

Provides a coding system, with flow charts, for "Hazchem," which provides an application of the knowledge of chemical behavior to emergency situations. (CS)

Reviews and provides sources for acquiring three filmstrips and one film concerning the following topics: laboratory safety, energy and entropy in chemical reactions, and chemical bondings. (CS)

Examines effects of NSF institute participation by secondary teachers. Tests alternative hypotheses that (1) an increase in student achievement associated with teacher inservice work may be accompanied by more positive attitudes towards science; or (2) that teachers may increase their students' achievement at the expense of less positive science…

Reports results of a longitudinal study of the effectiveness of career education for students within a 5-year period after graduation, part of an evaluation of a comprehensive K-12 career education program in the Pearl River School District. Describes the secondary program and the science-based health services cluster. (CS)

Outlines a variety of laboratory procedures, discussions, and demonstrations including in vitro contraction of muscle fibres and muscle proteins, sucrose density-gradient centrifugation, fern spore development, digestion of starch, construction of a small mammal trap, microscope selection, and occurrence and toxicity of mycotoxins. (GS)