Discusses the possibilities of accelerating the rate of cognitive development and describes the design and trial of intervention lessons. Gives preliminary results from one laboratory school indicating that the possibility of accelerating general cognitive development is worth pursuing. (YP)

Investigated were 17-year-old British students' comments on their previous science education. Satisfying science education entails (1) relevance, coherence and continuity; (2) concern for student needs; (3) and practical work such as inquiry activity. (YP)

Identifies communicators whom eighth-grade girls perceive as credible regarding reasons for taking elective physical science courses in high school. Finds that father, woman science teacher, mother, and boy high school student are ranked highly. Attributes associated with the communicators were classified as prestige, trustworthiness, similarity,…

Presented is a review of environmental ethics since the Belgrade Charter of 1976. Outlines seven ethical positions to be considered. Discusses ethics in environmental education practice. Focuses on four ways to lessen the dilemma of the presentation of values in environmental education. (CW)

Describes environmental education programs in the Lagos area. Reports survey results related to teachers' environmental action skills. Suggests some recommendations for environmental protection in the Lagos area and all states in Nigeria. (YP)

Described are developments in medical electronics and physiological measurement. Discussed are electrocardiology, audiology, and urology as mature applications; applied potential tomography, magnetic stimulation of nerves, and laser Doppler flowmetry as new techniques; and optical sensors, ambulatory monitoring, and biosensors as future…

Discussed are links between hospitals and local schools. Some aspects of the links, such as a medical physics convention, collaboration with teachers, work experience for students, and experimental projects are described. (YP)

Provided are lists of materials, procedures, questions, common animals possibly found, and techniques for use on a field trip. (CW)

Explored three modes of performance-based assessment: portfolios, portfolio-based simulations, and simulation exercises. Fifteen high school biology teachers completed 11 assessment activities. The primary finding is that performance-based assessments can be designed and administered, teachers can complete them, the assessment can be rated, and…

Describes the importance of estimation in science for planning projects, conducting experiments, and developing theories. Defines order of magnitude. Provides explicit mathematical equations and calculations to estimate answers for seven provocative physics problems. Includes nine additional open-ended problems with hints and solutions. (PR)

Explains how insects can be used to stimulate student writing. Describes how students can create their own systems to classify and differentiate insects. Discusses insect morphology and includes three detailed diagrams. The author provides an extension activity where students hypothesize about the niche of an insect based on its anatomy. (PR)

Presented are 126 reviews. Categories include amateur astronomy, children's books, computers and astronomy, cosmic rays, cosmology, education in astronomy, galaxies, general astronomy, history of astronomy, life in the universe, physics and astronomy, pseudoscience, quasars and active galaxies, reference, solar system, space exploration, stars and…

The conventional wisdom on how tomorrow's scientists are identified and trained in elementary and secondary schools is being questioned. The importance and reasons behind encouraging students to stay in science and mathematics are emphasized. (KR)

Reports on findings from an interpretive team study of the teaching/learning environments in the science program at an innovative Australian high school, in which 778 students perform laboratory and classroom activities within a self-paced, independent framework. Suggests that the knowledge that teachers require to undertake effective science…

Calculates an approximation to Avagadro's number for one mole of water by assuming the mole to be in cubical form and then halving the cube three times, thereby doubling the surface area of the original cube. The calculations are derived from the work necessary to perform these divisions. Presents calculated values for several liquids. (MDH)