Techniques have been described for using celestial spheres as data-generating devices. Descibes a variation, capitalizing on students' interest in activities related to Stonehenge. Following a movie, students determine whether or not astronomical alignments found at Stonehenge and related structures could arise by chance. Local buildings are used.…

In N-solution problems, students identify N solutions using only the materials themselves as reagents. Students who solved N-solution problems as a practical examination were asked to solve hypothetical N-solution problems on a paper/pencil test. Results indicate that students can solve these problems and still have gaps in knowledge of…

A flow chart is used to illustrate analytical chemistry as a component of a problem-solving process. Beginning with a problem, the flow chart proceeds to the question, experimental design, experiments, data treatment, answer, and solution. Another flow chart is used to expand on experimental design. (Author/SK)

Illustrates a variety of approaches that can be used in training undergraduates, graduates, and professionals in industry to solve trouble shooting or diagnostic problems. (CS)

Presents a step-by-step approach to be used in solving different forms of physics problems, starting from familiar grounds and finding well known results on the way. Uses the rate of heat flow and the resulting changes of temperature with time of a copper block as an example. (GA)

Shows that upon incorporating an irreversible step into an otherwise reversible Carnot Cyclic process there results a diminution of thermodynamic efficiency and a simultaneous augmentation of the entropy of the universe. (Author/HM)

Presented are two problem exercises involving rapid compression and expansion of ideal gases which illustrate the first and second laws of thermodynamics. The first problem involves the conversion of gravitational energy into heat through mechanical work. The second involves the mutual interaction of two gases through an adiabatic piston. (BT)

Presents nine science activities to help students improve their thinking and problem solving skills. Activities cover the science process skills of classifying, ordering, space-time relationships, inferring, predicting, and elaborating. (MKR)

The goal of this activity is to solve problems encountered when preparing food for space flight. Includes student worksheets. (MKR)

Presents results of preliminary trials that suggest that the program devised helped UK Year 12 (A-level) learners develop useful concepts of current and voltage, acquire a more integrated understanding of circuit behavior, and overcome their tendencies towards localized and sequential reasoning. Provides learners with a valuable aid for problem…

Describes a research program that provides insight into the nature of phylogenetic problems and problem-solving methods and how these might be applied to teaching evolution. Contains a new description of the nature of phylogenetic problems and factors contributing to their difficulty. (AIM)

Investigates the effect of explicit problem-solving instruction on high school students' (N=145) conceptual understanding of physics. Findings indicate that the explicit strategy improved the quality and completeness of students' physics representations more than the textbook strategy. No difference was found between the strategies on match of…

Explains how the moon provides information about the evolution of the solar system and offers scope for physics-based investigations. Uses statistical analysis of real scientific data with which students can predict the diameter and depth of impact craters then compare them with data gathered in institutions or laboratories. (Author/YDS)

Integrates story telling into a science activity on the density of liquids in order to increase student interest. Shows the relationship between mass and volume ratio and how they determine density. Includes teacher notes. (YDS)

Presents four guidelines for teaching quantitative problem-solving based on research results: analyze difficulties of students, develop a system of heuristics, select and map key relations, and design instruction with proper orientation, exercise, and feedback. Discusses the four guidelines and uses flow charts and diagrams to show how the…