Discusses general strategies and specific devices to motivate intermediate and advanced students to use the language laboratory frequently and efficiently. Suggests types of materials most effective for language laboratory use. (PMJ)

This experiment, in which students experiment on themselves, involves carrying out analytical methods for vitamin C using instrumental and "wet" techniques. (SA)

An 18-month study of an elementary school computer laboratory is discussed. (MK)

Focuses on rewards in scientific research. Discusses the social structure of science and its ability to inhibit creativity as ilustrated in the work, "The Act of Creation: Creative Processes in Science." This is related to accounts of the discovery of the chemical structure of DNA. (SA)

Describes and evaluates a learning center approach to economic education which involved secondary social studies students at the University of Texas, Austin. The subject of the learning center project was how to purchase and maintain an automobile. Findings indicated that the approach was successful and interesting to students. (Author/DB)

Describes an experiment in which an air table is used to measure the moment of inertia of air pucks with various radii and mass loadings. (BT)

Divides the stated aims of practical work, listed in some of the A-level syllabuses of the GCE examining boards, into four groups and discusses each: didactic aims, the development of skills, the scientific method, and affective aims. (GA)

Gives a brief description of open-circuit wind tunnels of rectangular cross-section and of how expanded polystyrene can be used to build a small one. (Author/GA)

Discusses the following: another version of Doppler beats; alternate proof of spin-1 sin-1/2 problems; some mechanisms related to Dirac's strings; Doppler redshift in oblique approach of source and observer; undergraduate experiment on noise thermometry; use of the time evolution operator; resolution of an entropy maximization controversy;…

A novel and efficient (34 percent overall) multi-step synthesis of the housefly sex attractant, muscalure, is described. Each of the steps involves types of reactions with which the undergraduate student would be familiar after one-and-one-half semesters of organic chemistry. (BB)

Description of the Laboratory School, its objectives, and how it provided a testing ground for Dewey's philosophy that history is useful as an analytical tool. Examines Dewey's belief that children gain insight into the principles and complexities of their own society by tracing historical origins and development through the process of…

This article discusses how a language laboratory can be used effectively in an English as a second language/English as a foreign language program. The lab should be used primarily for listening comprehension, not for drill and repetition. (CFM)

Describes the design of an experiment that is used to determine the acceleration of an accelerating system with the help of an airtrack and a pendulum. (GA)

Describes the following: a device which converts the displacement of a pendulum into an electric signal and is used as a voltage generator of low frequencies; a turn-by-turn transformer demonstration; how to remove the buoyant force on a piece of cork immersed in water; and how to demonstrate Coulomb's Law on the overhead projector. (GA)

Describes demonstrations used by the nineteenth century physicists to determine if two bodies oscillating at the same acoustic frequency were in phase. (GA)