Makes use of natural language of the beginning reader to teach a unit on dinosaurs. Outlines steps in the approach, strategies to heighten awareness and application, questions for encouraging further study, and a webbing technique. (RT)

Describes the use of oceanographers' models for introducing students to the concept of mathematical modeling. Outlines a lesson showing the interrelationship of science and mathematics. (RT)

Describes two simple procedures allowing students to experiment with living membranes and to relate their results to fundamental membrane structure. Provides instructions for determining the effects of temperature and organic solvent stress on cellular membranes, and spectrophotometric analysis. (RT)

Provides a brief introduction with some definitions and properties of Fourier transforms. Shows relations, ways of understanding the mathematics, and applications. Notes proofs are not included but references are given. First of three part series. (MVL)

Notes that the rigorous kinetic theory, based on the Boltzmann equation, does not yield exact results although some texts claim this to be so. Stresses that they should be presented as approximations with an indication that refinements in the values are possible. (MVL)

Discusses the overall educational value of grouping students to enhance learning in the classroom. Describes an alternative to whole-group lecture which is referred to as cooperative problem solving. Explains staff training and procedures necessary for implementing this technique. (RT)

Discussed are selected application and future trends in supercritical fluid chromatography (SFC). The greatest application for SFC involves those analytes that are difficult to separate using GC or LC methods. Optimum conditions for SFC are examined. Provided are several example chromatograms. (MVL)

Described is a physics course for satisfying the junior-year writing requirement. Gives nine assignment examples of the course. Discusses the use of the writing component as a teaching aid in junior level "Electricity and Magnetism" course. (YP)

Discussed is a method of measuring the coefficient of linear expansion of a solid. Getting many data points, using a computer program using the least square fit technique, and modifying the apparatus are described. (YP)

Discusses the use of an overhead projector for the deflection of a vertical image to a screen. Describes three demonstrations: magnetizing of a steel ball bearing and paper clip; convection currents of a hot liquid within a cold liquid; and oscillation of concentrated salt solution into fresh water. (YP)

Attempts to show that in the closed loops of cyclic structures the protons situated in conic regions above and below the ring will be shielded. Uses the diamagnetic and air stable octahedral tin(IV) complexes of porphyrins for study. Notes complexes crystallize easily and offer spectacular purple colors. (MVL)

Presents information and concerns regarding computer courseware, books, and audiovisual materials reviewed by teachers. Covers a variety of topics including dissection of common classroom specimens, medicine, acid rain projects, molecules, the water cycle, erosion, plankton, and evolution. Notes on availability, price, and needed equipment, where…

Presents an energy function E(p) containing a single integral and one variational parameter, alpha. Represents all two-electron integrals within the local density approximation as a single integral. Identifies this as a simple treatment for use in an introductory quantum mechanics course. (MVL)

Describes a case study of secondary schools in Ibadan (Nigeria) that was conducted to determine whether programed instruction was more effective than traditional classroom methods in teaching chemistry. Treatment of control and experimental groups is described, gender differences are examined, and implications for educational practice and further…

This study reports the preferences students expressed in regard to problem-solving modes for resolving environmental problems. There were many differences between students at different grades and between girls and boys. Implications for teaching are suggested. (YP)