The Zimbabwe Secondary School Science Project (ZIM-SCI) developed student study guides, corresponding teaching guides, and science kits for a low-cost science course which could be taught during the first 2 years of secondary school without the aid of qualified teachers and conventional laboratories. This teaching guide, designed to be read in…

Designed to address the major conceptual problems associated with light and vision, appearances of surfaces, and color, this module can be used with high school students or college nonscience majors including those in elementary education. It is one in a series developed by the project "Overcoming Critical Barriers to Learning in Nonmajors'…

Describes a two-quarter chemistry course designed to enable civil engineers to perform water analysis studies. (PB)

This paper describes an experiment in team teaching involving 25 students in a Spanish language class on the high school level. Team teaching was found to be particularly suited to vocabulary presentation, testing, culture teaching, grammar explanations, dramatization of stories and fables, pronunciation drills, and classroom conversation. It was…

This report contrasts the results of a rigidly specified, pattern-oriented approach to learning Spanish with an approach that emphasizes the origination of sentences by the learner in direct response to stimuli. Pretesting and posttesting statistics are presented and conclusions are discussed. The experimental method, which required the student to…

Describes the functioning of temperature transducers, or thermistors. Discusses the interface connections between thermistors and the game-port of several kinds of microcomputers. Demonstrates how to construct a thermistor probe and suggests several applications of the use of such probes in various scientific experiments. (TW)

Provides some background information on acid deposition. Includes a historical perspective, describes some effects of acid precipitation, and discusses acid rain in the United Kingdom. Contains several experiments that deal with the effects of acid rain on water quality and soil. (TW)

Contains 21 articles ranging from instructional experiments to topical information. Deals with investigation of plant rust diseases, using computers to teach biology, plant roots, a biotechnology curriculum, the corrosion of oxides, electrochemical simulations, the Reimer-Tiemann reaction, the oxidation of aldehydes, and the extraction of iodine…

Reports on a study which compared the effectiveness of microcomputer simulated experiences with that of parallel, hands-on laboratory instruction for teaching the concept of volume displacement to junior high school students. Results indicated that computer simulated experience were as affective as hands-on laboratory experiences. (TW)

Describes the use of a precalibrated stainless steel thermistor, interfaced with an Apple computer, in chemistry experiments. Discusses the advantages of "instant" temperature readings in experiments requiring that readings be taken at certain intervals. Outlines such an experiment which investigates freezing point depressions. (TW)

Discusses some of the advantages of using overhead projectors to demonstrate chemistry experiments. Provides a list of guidelines and equipment for these types of demonstrations. Describes 21 simple demonstrations that can be done in chemistry classrooms that require minimal equipment and cost. (TW)

Details 26 experiments designed for use in secondary or college science classes. Includes activities for physical and biological sciences. Describes procedures, materials, safety, and analyses appropriate for each. (CW)

Describes a two-week concentrated laboratory course in chemistry offered by Union College (New York) for middle school students. Provides the objectives of the course and a listing of experiments done by the students. Promotes the use of experiential approaches rather than lengthy lectures and discussions. (TW)

Describes the field work component of a half-term course in environmental chemistry. Discusses the teaching methods used with the students in detecting water pollution. Outlines the activities and experiments in one field trip and presents the results and deductions made by the students. (TW)

Describes 13 activities, experiments and demonstrations, including the preparation of iron (III) chloride, simple alpha-helix model, investigating camping gas, redox reactions of some organic compounds, a liquid crystal thermometer, and the oxidation number concept in organic chemistry. (JN)