Discusses techniques involved in producing recombinant DNA. Also discusses implications of the new genetic technologies and prospects for the future. (JN)

A modular system titled "Principles of Technology" for grades 11 and 12 is described. The program, which blends academic and vocational education to meet increased science and mathematics requirements, uses video presentations and hands-on laboratory exercises and can be used as part of a one-or two-year technical program or integrated…

Background information, procedures, and typical results are provided for an experiment illustrating the potential of hydrated salts for solar energy storage. The experiment involves a demonstration often used to illustrate the ease with which some transition metal ions can change their coordination numbers. (JN)

Discusses how the concept of crystallography, especially the relationship between spherical and stereographic projections of crystals, is more easily understood by undergraduate students if they make spherical projections of crystals. Recommends using transparent balloons and a felt-tipped marker to denote the locations of crystal axes, face…

This literature review on chemometrics (covering December 1981 to December 1983) is organized under these headings: personal supermicrocomputers; education and books; statistics; modeling and parameter estimation; resolution; calibration; signal processing; image analysis; factor analysis; pattern recognition; optimization; artificial…

Briefly describes some of the more recent developments in the use of human hairs for such instructional purposes as observing barr bodies and chromosomes, and for culturing to produce cells of both epithelial and fibroblastic morphology. Three main hair categories are also described. (JN)

Described are 13 physics experiments/demonstrations applicable to introductory physics courses. Activities include: improved current balance, division circuits, liquid pressure, convection, siphons, oscillators and modulation, electrical resistance, soap films, Helmholtz coils, radioactive decay, and springs. (SL)

A learning system is a logical arrangement of learning experience progressions designed to improve the relevance of educational topics to the individual student, using such strategies as pre- and post-assessments, recycling activities, learning laboratories, small and large group meetings, and independent study. (MB)

An approach to the teaching of composition undertaken by the University of South Carolina writing laboratory is described in which the objective is to educate students and teachers in the composition process and to discover more about how writing is learned. Focus is on helping people learn to think. (LBH)

Describes a method for performing a thermodynamic "ice bomb" demonstration which is faster, simpler, and cheaper than commercially available demonstration devices. (SL)

This article proposes improving the use of the language lab in second language teaching by increasing the importance of actual spoken language in relation to structural exercises, which may be of an artificial nature. (Text is in French.) (CDSH/CLK)

The experimental use of seniors as teaching assistants is described by an assistant professor at Wittenberg University. Benefits of the program for most of the participants are discussed. (Editor/LBH)

Describes physics experiments and apparatus construction for studies in astronomy, electricity, wave measurement and speed, the behavior of steel, and intermolecular forces. Includes a detailed description of how to simulate apparent trajectories of the moon and sun. (CS)

Describes a three-step method to acquire elementary school classroom equipment by collecting recyclable materials from parents. Step One involves inventory, listing needed materials, and deciding on storage; Step Two, timing and introducing the project through various media; Step Three, cleaning, sorting and storing materials. (CS)