Electrography is a technique in which unknown metals are identified by the precipitates they form with known electrolytes. The technique illustrates both electrochemistry and precipitation reactions. Describes the technique, suggesting its use in science and forensic science classes. (JN)

Describes activities (demonstrations/experiments) used to introduce history of periodic properties--without electrons, orbitals, filling shells, or any conception of atoms beyond Dalton's model. Activities supplement first chapter in a currently available chemistry text. Indicates potential danger of experiments if proper safety precautions are…

Video games have a potential role in analysis of motor learning through laboratory tasks. This article discusses why games meet the requirements of laboratory tasks and suggests types of training and research that could be carried out using them. (PP)

Presents an experimental comparison of the efficacy of two neutron sources under conditions commonly used in laboratory experiments for demonstrating neutron activation of liquid samples. (Author)

Electrochemical studies can give insights into the chemical aspects of enzymatic and in vivo redox reactions of naturally occurring organic compounds. This is illustrated by studies of the electrochemical oxidation of the purinem uric acid. The discussion is limited to information at pH 7 or greater. (JN)

Highlights the major design decisions for educators who are planning a microcomputer-based learning laboratory. Drawings and tables showing sample layouts, hardware and software attributes, funding sources, and lists of microcomputer periodicals are included. (JJD)

Presents information, laboratory procedures, and results of an undergraduate experiment in which activity coefficients for a two-component liquid-vapor system are determined. Working in pairs, students can perform the experiment with 10 solutions in a given three-hour laboratory period. (Author/JN)

Discusses advantages of computer assisted instruction (CAI) in a community college writing/reading curriculum. Using word processing software, students write reports, themes, and essays on the microcomputer. Other software is used for learning vocabulary, grammar, reading rate and comprehension. Includes problems to avoid to ensure success in CAI…

A series of audiovisual presentations of laboratory techniques, instructions, and principles for intelligent operation of instrumentation have been developed. Discusses utilization of these slide/tapes educational benefits, and comparison with commercial tapes. Titles of the slide/tapes are provided. (Author/JN)

Urges the use of writing models in content area instruction to demonstrate to students exactly what they are asked to produce and suggests that content area faculty join forces with English faculty in the teaching of composition. (AEA)

Focuses on how writing center directors can use the resource of peer tutors and discusses the rationale for, the selection of, and the evaluation of tutor applicants. (AEA)

Argues that, as the major point of contact with the student writer, an articulate and properly trained peer tutor can transmit valuable insights into the complex process of learning how to write well. (AEA)

Three chemistry demonstrations are described: (1) modification of copper catalysis demonstration apparatus; (2) experiments in gas-liquid chromatography with simple gas chromatography at room temperature; and (3) equilibria in silver arsenate-arsenic acid and silver phosphate-phosphoric acid systems. Procedures and materials needed are provided.…

Describes an experiment to examine the kinetics of carbamate decomposition and the effect of buffer catalysis on the reaction. Includes background information, laboratory procedures, evaluation of data, and teaching suggestions. (Author/JN)

Describes rationale, need, and purpose of three lists of objectives (included in appendices) of objectives for skills and abilities related to experimental, practical work in biology, chemistry, and physics. (SK)