Describes a self-demonstration experiment designed to teach the principles of the spark-ignition system. (SB)

Part of a project--Gothenburg, Teaching Methods in English--conducted at the University of Gothenburg and the Gothenburg School of Education in Sweden. (DD)

After providing information on elementary schooling in Yugoslavia, discusses ecological topics and activities used to raise the awareness of elementary school students about the level of pollution in the environment and the dangers of an increasingly polluted environment. Students' keen interest in chemistry and the chemical experiments was noted.…

The carabid beetle (Notiophilus) preys readily on an easily-cultured collembolan in simple experimental conditions. Some features of this predator-prey system are outlined to emphasize its use in biology instruction. Experiments with another potential collembolan are described in the context of developing the method for more advanced studies.…

This article focuses on the discussion of teaching chemistry to the handicapped and particular techniques that are useful to the communication process. (SA)

Describes three accessories developed to be used in conjunction with the rotating platform or turntable. Three demonstrations using these accessories are included. These demonstrations are: (a) conservation of angular momentum; (b) gravity-defying goblets; and (c) direct measurement of centripetal force. (HM)

Presents two methods for measuring the index of refraction of glass or lucite. These two methods, used in the freshman laboratory, are based on the fact that a ray of light inside a block will be refracted parallel to the surface. (HM)

Presents nine selected chemistry notes which could be used in school chemistry courses. Each includes the name of the author, a description of activities suggested and a list of references. (HM)

Factors that influence the efficiency of laboratory experiences include: size of laboratory group, length of session, discussion, special tools, and applications of knowledge learned. It is suggested that these variables may be altered to insure that students gain from their time spent in the laboratory. (BH)

Presents two elementary and two secondary teaching strategies related to food and energy as global issues. Includes making a survey on energy use, an exercise about food, society, and technology, an energy and a water survey, and discussion and experiments concerning food and technology. (CK)

Seven suggested activities for use in biology classrooms are described. (HM)

Presents thirteen selected chemistry activities which could be used in school chemistry courses. (HM)