Analyzes problems with traditional teacher education, reviews the basic elements of the constructivist learning views, and discusses the advantages of a constructivist approach to science teacher education. (PR)

Explored how elementary school children (n=267) "think" about science vocabulary through an examination of the organizational schemes children employ with science words. A common core of vocabulary was developed from textbooks. Students grouped the words and gave the group a name. One result indicated students had appropriate conceptual…

The heat content of a food at a given temperature can be described by the thermodynamic property of enthalpy. Presents a method to construct a simple calorimeter for measuring the enthalpy changes of different foods during freezing. (MDH)

Seventh-grade students (n=397) were studied to determine the effect on immediate achievement and retention of a unit designed to promote the development of estimating skills involved in metric measuring. Identical metric instruction was used with the exception of activities in estimation for the treatment group. The treatment group retained…

This study sought to find out whether concept mapping reduces anxiety and thereby enhances achievement in biology. A total of 51 grade-10 students participated in the experiment. Findings indicate concept mapping is significantly more effective than traditional teaching in enhancing learning in biology and reducing student anxiety toward biology.…

(PR)

Describes an integrated thematic unit for children from kindergarten to third grade. Explains that the unit incorporates reading, speaking, writing, science, mathematics, social studies, and art into the study of whales. Suggests learning activities on echolocation, migration, measurement, scrimshaw, history, and human interaction with the…

This study (n=192) examined the use of analogical instruction to overcome misconceptions about conservation of matter. Students who understood the concept conservation of matter when iodine was evaporated were able to transfer their understanding to the evaporation of acetone. This indicates that teaching by analogy can be an effective tool in…

Data from the 1983-84 Israeli IEA (International Association for the Evaluation of Education Achievement) science study were used to explore gender-related differences (and their determinants) in the learning of science. The study (n=1974) involved several measures of science learning, 10 attitudinal measures, and items and errors classification.…

Study compared two generations of seven high school chemistry texts (1970/1973) and current editions analyzed for gender fairness in illustrations and concrete analogies. Among conclusions was there were significant differences between the old textbooks and newer textbooks in relative frequencies of illustrations of men and woman and no…

This study investigated whether Science Curriculum Improvement Study or more recent interpretations of the learning cycle could be used by teachers to engage students in social constructivist learning. Two researchers and six science teachers implemented instruction based on the reciprocal use of language and action. Changing beliefs and practices…

Reports a study (n=41) of the effectiveness of in-depth, conceptually integrated instruction delivered via a videodisc program in eliminating children's alternative frameworks in science. This curriculum, which did not directly address alternative frameworks during instruction, changed 92% of the alternative frameworks held by students to…

Discusses the use of answering machines to teach astronomy to students while they are home. Provides directions on prelesson instruction; how to prepare the taped lessons; parent involvement; and lesson implementation. (MDH)

Spreadsheets are well suited to many geochemical calculations, especially those that are highly repetitive. Some of the kinds of problems that can be conveniently solved with spreadsheets include elemental abundance calculations, equilibrium abundances in nuclear decay chains, and isochron calculations. (Author/PR)

Describes a take-home experiment in which students measure the diffusion of acid through acid-filled capillary tubes immersed into base solutions and vice versa. Students represent and analyze the effects of ambient temperature, molecular weight, and concentrations of the solutions on that movement. (MDH)