Provides a detailed account of the significant components of Sister M. Gertrude Hennessey's instruction for conceptual change learning in an elementary science classroom. Discusses the implications of this case study for the practices of other teachers. Contains 40 references. (Author/WRM)

Describes teaching considerations related to the nature of science and scientific knowledge in an elementary-science methods course. Discusses instructional strategies used to develop preservice elementary teachers' understandings of the nature of science and scientific knowledge. Presents the results of these strategies on teacher learning and…

Investigates the conceptual-change process in grade 10 students during a computer-supported physics unit. Finds that many students vacillated between alternative and scientific conceptions from one context to another during instruction, and those few students who did exhibit context-independent and stable conceptual change appeared able to accept…

Explains instructions for creating an oil-spill simulation activity in which students are challenged to clean up the spill. (WRM)

Examines changes in the science content representations of two prospective elementary teachers during their first year in an experimental teacher preparation program. Finds that opportunities to engage in cycles of instruction guided by structured considerations for content representation contributed to improvements in the teachers' science…

Discusses ways in which a teacher can mislead students by adopting the wrong strategy when answering an unexpected student question. Presents a scheme for addressing unexpected questions and illustrates it with examples. (Author/WRM)

Employs discourse analysis techniques to examine the approach taken in addressing minority group knowledges in two recently-published sets of junior secondary science texts, with a specific focus on the incorporation of indigenous knowledge into the texts. (Contains 44 references.) (Author/WRM)

Students' conceptions about "microbes" tend to condition their understanding of biotechnology. Explores connections between the status given to diseases, a hygiene-oriented culture, layman's versus school knowledge, personal experience, socio-cultural mediation, linguistic confusions, and students' conceptions. (Contains 21 references.)…

Students investigate the effects of global climate change on life in the Great Lakes region in this activity. Teams working together construct as many links as possible for such factors as rainfall, lake water, evaporation, skiing, zebra mussels, wetlands, shipping, walleye, toxic chemicals, coastal homes, and population. (PVD)

Presents a unit approach that utilizes Howard Gardner's seven intelligences (Linguistic, Logical/mathematical, Spatial, Music, Kinesthetic/body, Intrapersonal, and Interpersonal). Students are given a list of activities and make a contract to complete a certain number on the list. A sample unit for fifth graders on the bodily systems is provided.…

Describes remedial instruction activities as well as activity developmental strategies that utilize the results obtained from previous research on students' misconceptions related to photosynthesis to enhance 11th- and 12th-grade biology students' understanding of photosynthesis. (ZWH)

Presents a color poster, information, and activities for introducing students to biodiversity. (PR)

Explains how to use saliva instead of blood for classroom blood typing activities. Describes the protocol and equipment needed. (PR)

Describes the statistical test of chi-square analysis. Explains how this test can be used in biology instruction. Examples from blood typing are used. (PR)

Presents an interdisciplinary activity that combines math and science and enhances cooperative learning skills. Enables students to learn about the scientific method by designing an original research project, collecting and interpreting data, and drawing conclusions based on their research. (JRH)