Although teacher educators have achieved some success in improving teachers' understanding of the nature of science (NOS), helping teachers teach NOS has proved a much greater challenge. Currently, there are few examples in the literature of teachers who effectively teach NOS, and fewer still that rely on student outcomes as a measure of teachers'…

Context-based and science-technology-society (STS) approaches to teaching science in high school have become widely used over the past two decades. They aspire to foster more positive attitudes to science while, at the same time, provide a sound basis of scientific understanding for further study. This paper reviews the detailed research evidence…

Considers what level of understanding of the nature of science students should experience to become both intelligent consumers of scientific information and effective citizens. Proposes that most precollege teachers should attempt to teach students how to use scientific descriptors to judge the relative merits of knowledge claims instead of…

Technological literacy including a meaning for both literacy and technology, the nature of technological knowledge, and the decision-making skills in a technological society are discussed. Suggested are implications for instruction both at the preservice level and the in-service level. (YP)

Investigates conceptions of the geosciences held by a university geology instructor and five students before and after a teaching intervention. Argues for the use of repertory grids to elicit personal constructs. Advocates targeting the societal aims of geological education within a constructivist framework. Contains 54 references. (Author/WRM)

Describes a study of Greek high school students' (n=116) perceptions of the ozone layer. Finds that students have a good understanding of the position and purpose of the ozone layer in terms of protection from ultraviolet rays, but students also hold misconceptions linking the ozone layer to the greenhouse effect and other forms of local…

Results of a multiple choice instrument, (sample of convenience, n=45 education students), indicate that preservice and inservice science teachers had similar views. Views are classified as "Naive,""Has Merit," and "Realistic." The majority (79%) of the inservice teachers and the largest percentage of the preservice…

Explores the use of narrative as a vehicle for sharing, communicating, and understanding personal experience. Argues that the narrative is a useful form of expression that is too often neglected in science education. Through stories students may begin to more successfully see the subtle dimensions of science and understand the ways in which…

Reports on a study to test the validity of the assumption that a teacher's conception of the nature of science directly influences his/her classroom behavior. Recommends a redirection in science education to promote more adequate conceptions of the nature of science in secondary schools. (TW)

A sample of grade 11 and 12 Canadian students (n>2000) responded to a national survey concerning the epistemology of science. Results revealed preconceptions held by students involving the nature of science, scientific assumptions, values in science, conceptual inventions, the scientific method, consensus making in science, and characteristics…

Describes the findings from a case study of a chemistry teacher who participated as a coresearcher in investigating the process of change. This teacher attempted to shift the focus of his teaching away from teacher-centered practices and emphasis on content to student-centered practices and emphasizing problem solving relevant to the use of…