Discusses the scant coverage in high school textbooks of countercurrent exchange for the efficient movement of molecules across biological membranes. Argues that this is one of the most intriguing of the physiological adaptive mechanisms. (DDR)

Examines how the theory of evolution was received by the scientific community at the time of its inception to provide insight into some of the difficulties that students have in learning some important biological concepts. Contains 82 references. (DDR)

Uses digraphing as methodology to synthesize students' conceptions of natural phenomena in order to identify the structural characteristics of their conceptions. Contains 41 references. (DDR)

Thirty of 37 states responding to a recent survey had some type of formal Tech Prep initiative in place. Provides an overview of Tech Prep and a model for its integration into the K-12 curriculum. Discusses implications for science and mathematics teacher preparation. Contains 14 references. (Author/ASK)

Discusses a sixth-grade science classroom that incorporates literature into the curriculum. Presents an annotated bibliography of 13 novels that can be incorporated into both science and literature classes. Lists several activities for bringing science and young adult literature together. (SC)

Examines three questions about science teachers' beliefs regarding the necessity of science reform strands, teachers' perceptions of the implementation of reform strands in their classrooms, and how teachers' beliefs relate to their perceived implementation of reform efforts. Contains 43 references. (DDR)

Presents a survey and analysis of research related to the development of concepts of matter. Proposes that the clarity with which students understand the distinction between matter and objects influences their explanations. Contains 111 references. (DDR)

Introduces a five-part program involving industry and technology cooperation in science education, including the curriculum-focused multi-site tour, general tours, teacher tours, and open days. (YDS)

The Open University's "Into Science" is a learning pack of materials that introduce adult students to science and math. Tutors approved of the quality and coverage but thought the cost was high. They said that students found the materials interesting and about the right level of difficulty. (SK)

Introduces 25 creative science activities that are grouped under 4 categories: physical science, earth science, life science, and process activities. (MOK)

Addresses the issue of what the curriculum might look like if the promotion of public understanding of science was taken as its primary aim. Discusses understanding science content, methods of science, and science as a social enterprise. (JRH)

Traces the development of General National Vocational Qualification (GNVQ) Science in Great Britain focusing on the pilot specification, methods of assessment, evaluation and revision of the structure, and a comparison with A-levels. The GNVQ is a vocational qualification for students in England and is part of a program to upgrade vocational…

Describes a case study of an expert teacher's questioning strategies during an open-inquiry engineering curriculum in a grade four and five classroom. Analysis provides evidence for the complexity of questioning that is characterized by the interactions of context and content of, and response and reactions to, questions. Contains 45 references.…

Presents an exercise to be used after students have been introduced to Mendelian genetics and the Punnett square. Allows students to grasp the mechanics of Mendelian genetics. (DDR)