Experiments to measure range, range straggling, stopping power, and energy straggling of alpha particles are discussed in this article. Commercially available equipment with simple modifications is used for these measurements. (Author/GA)

Describes the preparation of suitable solid electrolytes and cells which may form the basis of a laboratory teaching program designed to illustrate a variety of electrochemical ideas. ( Author/CP)

Reports on a computer batch program that will not only perform routine grading using several grading algorithms, but will also calculate various statistical measures by which the class performance can be evaluated and cumulative data collected. ( Author/CP)

Suggestions on the preparation of various kinds of glass and a demonstration of burning magnesium and dry ice are presented. (CP)

Describes a synthesis of chrysanthemic acid which has been used successfully in a laboratory course. (Author/CP)

Presents the third annual collection of abstracts of educational materials presented by the Educational Materials Review Board of the American Physiological Society. Board members have submitted abstracts of review articles, papers, textbooks, books, manuals, handbooks and symposia which they have found valuable in teaching physiology. (Author/CP)

Reports on an undergraduate laboratory course designed to provide instruction and practice in the intellectual skills of application, analysis, and synthesis, and in Piaget's formal operations. A 10-item exam used to measure these skills is included as an appendix. (Author/CP)

Examines the relationship between selected variables in the student's background and success in nursing chemistry and the relationship between the student's performance on the American Chemical Society's Cooperative Examination and the Chemistry Achievement Examination of the National League for Nursing. (CP)

Information concerning an undergraduate level experiment on the effects of surface forces is provided. (CP)

Describes the use of nuclear magnetic resonance (NMR) spectroscopy to study a three-component system and the technique by which to define a ternary phase diagram. (CP)

Explains how general physics textbooks introduce fundamental concepts on the basis of controversial philosophical outlooks, without indicating this either to the student or the instructor. Examines critically the philosophical approaches in a number of textbooks from a dialectical materialist viewpoint. (Author/GA)

Describes an experiment for estimating molecular size and Avogadro's number. Uses the diffusion length of iodine in air at 100 degrees Celsius as a function of time, and the change in volume of a small quantity of carbon dioxide as it goes from the solid to the gaseous state. (GA)

Reports a study to determine if the formal capabilities of 81 elementary education preservice teachers would be enhoused from problem solving instruction with manipulative feedback or with pictorial feedback. Results indicate the manipulative mode was clearly superior in student attitudinal responses and achievement. (SL)

Reports a study utilizing self evaluation of videotaped teaching session by preservice secondary science teachers, on a ten point teaching strategy scale, from expository/direct to inductive/indirect, to assess the effects of microteaching and strategy analysis. Results indicate that systematic self analysis has a significant influence on teaching…

Reports a study of the effect of source of feedback on the attitudes and ability of 92 preservice elementary teachers to employ specific teacher behaviors. Results indicate that source of feedback, or no feedback, made no difference in the demonstration of specific behaviors. (SL)