Interviews with participants in the Alum Rock Voucher Project revealed that the effects of a voucher system on teachers were varied and profound: greater teacher autonomy but increased responsibilities; more within-program cohesion but increased competition between programs; and greater parent involvement, requiring teachers to improve…

Spectroscopic aspects of the triboluminescence spectra of three Lifesaver candies are discussed. Emphasis is placed on the experimental methods of measuring spectra and origins of the tribaluminescence. (SA)

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

Background information on the acoustics of the violin is given as a basis for student physics laboratory projects. References are suggested that can provide a basis for many experiments. (SA)

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)

Provides a discussion which is intended for chemistry college students on the ion cyclotron resonance (ICR) spectroscopy, the physical basis for ion cyclotron resonance, and the experimental methodology employed by ICR spectroscopists. (HM)

Focuses on recent research on currents and eddies of the earth's oceans. Special emphasis is given to instrumentation involved in studying the oceans. (SA)

The mathematical solution to a Piagetian experiment involving topological concepts reported in a recent book is labeled as a sham. The correct solution is given and discussed. (MP)

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)

This simple and inexpensive experiment is an illustration of the physical concepts of interaction between light and surface tension waves, and provides a new method of measuring surface tension. (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;…

Investigates and explains the phenomenon associated with Rubens flame-tube demonstration, specifically the persistance of flames at regular intervals along the tube for few minutes after the gas is turned off. (GA)

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)

Traces the early history of an experiment, the launching of a copper or aluminum ring above the pole of an alternating current magnet at switch-on, that was conducted by Elihu Thomson in the last century and presents a simple qualitative explanation of the effect involved. (GA)