Describes bioluminescence and the chemistry of how it occurs. Presents information for conducting the following classroom activities: (1) firefly mimic; (2) modeling deep-sea fish; (3) sea fireflies; and (4) the chemistry of light. (PR)

Describes inexpensive and safe activities centered around the chemistry of effervescent products such as Alka-Seltzer. Activities demonstrate the following: water-induced reactions, the influence of humidity, temperature and rate of reaction, particle size and rate of reaction, concentration and rate of reaction, the neutralizing power of…

Conceptual change teaching is an instructional method that helps students modify, extend, or exchange their alternative conceptions for the appropriate scientific conceptions. Provides activities and a diagnostic test to apply the method to the concepts of heat and temperature. (MDH)

Describes scientific and technical accomplishments of the Chinese in developing earthquake detection procedures, paper making, and medicine and of Islamic people in developing astronomy and mechanical engineering. (PR)

Describes a class project of producing a geologic report of a park for a community. (PR)

Presents reasons why jargon should not be used in biology instruction. Argues that more hands-on science activities and relating learning to everyday living needs to occur in the science classroom. (PR)

Presents an activity in which models help students visualize both the DNA process and transcription. After constructing DNA, RNA messenger, and RNA transfer molecules; students model cells, protein synthesis, codons, and RNA movement. (MDH)

Discusses three prospective elementary teachers' conceptions of teaching science and selected portions of their knowledge base in life science. Explores how these teachers' conceptions, along with their teaching actions, developed during the course of a teacher-education program. Contains 21 references. (Author/WRM)

Discusses three prospective secondary biology teachers' conceptions of teaching science and selected portions of their knowledge base in biology. Explores how these teachers' conceptions, along with their teaching actions, developed during the course of a teacher-education program. Contains 31 references. (Author/WRM)

Summarizes a complex study of a science-teacher-education program whose goal was to graduate teachers who held conceptual change conceptions of teaching science and were disposed to put hem into practice. Concludes that there are influences on prospective teachers from their content coursework that have significant implications for how they view…

Presents examples of chemical education research that illustrate changes in focus, method, and direction over the past 50 years. Contains more than 50 references. (WRM)

Describes the affective factors involved in the academic progress and achievement of newly-arrived bilingual twins in a secondary school in London. Finds that different personality traits and self-perceptions resulted in the development of their divergent personal learning styles, and that task interest, appropriate learning strategies, and…

Presents a series of lessons that use Bloom's taxonomy of educational objectives to teach students the various levels of knowledge and how to form questions that address each level. (PR)

Explores the potential of the RAY learning environment in improving learning about optics. Results indicate that this environment, which includes a flexible ray-tracing simulation, had a significant effect on the spontaneous and correct use of the model by students in solving problems and a limited effect on conceptual understanding, but promoted…

Investigated whether preservice elementary teachers in Argentina and Israel held scientific views that enabled them to correctly nstruct their future students to achieve a concept of energy, noting differences between the scientific concepts of students in the two countries. Questionnaire data indicated that students were very similar, but their…