Describes the measurement of electric potentials by means of a flame probe. This method is used extensively in the new Nuffield Advanced Level Physics course, and provides a means of taking reliable quantitative results in an area of most school courses where the majority of the work is qualitative. (JR)

Plato's rationale for his ideas on teaching and the problems he confronted in convincing other educational leaders of the validity of his beliefs are discussed. (CK)

Advocates that information on student aptitude for foreign language learning be used not, as in the past, for determining the best general method for language teaching but rather for determining the best teaching method for particular kinds of students. (FB)

Suggests incorporating three-phase learning cycle into laboratory teaching to foster formal reasoning skills. Describes five types of laboratories, each of which offers experiences necessary for the initial phase of the learning cycle. Indicates importance of presenting concepts in a way that progresses from concrete to abstract. (JN)

The Mole Concept is a learning cycle (patterned after University of Nebraska-Lincoln's ADAPT model) for the chemical unit "mole." Discusses objectives and activities involved in each phase of the cycle: exploration, invention, and application. Indicates the cycle is superior to traditional lecture-demonstration for teaching the abstract mole…

Describes a laboratory exercise to demonstrate enzyme activity using gelatin and meat tenderizer. The exercise is adaptable to any grade level. (MA)

Discusses an attempt to have students learn chemistry by conducting and discussing laboratory experiments in small groups largely independent of the teacher. The project results and the 30 experiments that student groups conducted are described. (WB)

Presents three notes on new equipment, techniques, or materials of interest to teachers of physics. (HM)

The role of laboratory experience in professional education is discussed. Although laboratory experiments are often expensive and demanding on faculty time, they can offer a unique experience to the veterinary medicine student. (BH)

Changes, reactions, deductions. Five simple experiments add new skills and excitement to science. (Editor)

Describes an activity based on shrinkable thermoplastics in which students explore the percentage of shrinkage of a plastic ruler when it is heated. Includes science content knowledge behind the shrink, national science education standards related to this activity, and a complete guide. (KHR)

Describes an ecology curriculum primarily for elementary school students but also adaptable to junior and senior high school classes. Includes investigative and inquiry-based laboratory problems to accompany inquiry-based teaching. Connects the science learning that happens in school to students' own experiences. (SOE)