Describes a method in which the effect of impurity ions in the dielectric is taken into account in the operation of the Kerr cell. (Author/CP)

Describes a chemistry course for nonscientists in which the content was largely determined by the students. An opinion poll given to the students before and after the course showed a significant improvement in the students' attitude toward science. (MLH)

Discusses a study which projects the future output of science doctoral degrees. The figures project the following decreases in Ph.D. productions: physical sciences, minus 51 percent; engineering, minus 32 percent; and mathematics, minus 50 percent; and the following increases during the same period: social sciences, 41 percent; and life sciences,…

This study investigated interactions between student traits and treatments. Engineering and physics majors were enrolled in either a lecture-recitation-laboratory section, or an audio-tutorial section of an introductory physics course. No significant differences were found between the two groups, but an interaction was found between two traits…

Two hundred students in an undergraduate physical geography course were assigned to a group which received either factually oriented quizzes or quizzes which stressed higher level behaviors such as application and analysis. Evaluation of the results indicated that the variation in testing procedures had no discernable effect on student scores in…

Reviews both baccalaureate and associate degree programs in engineering technology. These programs have increased and expanded primarily as a response to society's demand for technical manpower. (MLH)

The stoichiometry of the reaction between potassium chromate and barium chloride is determined by analysis of precipitates by mixing various amounts of both solutions. (GS)

Describes an experiment in which the beam of X-rays is simulated through the use of a laser as a monochromatic light source and the crystal is replaced by photographically prepared masks. A strong diffraction pattern as large as 20 cm. can be obtained. (GS)

Presents a rationale for the development of crossdisciplinary courses by outlining the following advantages: relevance to the solution of current social problems, flexibility of focus of study, in depth study at the interfaces of the discipline, and implementation of teaching techniques that bring out relationships between studies. (GS)

Presents definitions of terms used in communicating about Transactional Analysis (TA) and explains how TA may be used in science classes to make students feel more able and less captive. (PEB)

Describes an experimental project on boomerangs designed for an undergraduate course in classical mechanics. The students designed and made their own boomerangs, devised their own procedures, and carried out suitable measurements. Presents some of their data and a simple analysis for the two-bladed boomerang. (Author/MLH)