Describes method for locating images in simple and complex systems of thin lenses and spherical mirrors. The method helps students to understand differences between real and virtual images. It is helpful in discussing the human eye and the correction of imperfect vision by the use of glasses. (Author/SK)

Reports the results of a survey of practicing scientists, recent graduates, and undergraduates about their perceptions of undergraduate laboratory programs in biology, chemistry, and physics. Scientists and graduates regard laboratory experiences in pragmatic terms stressing the scientific process skills while undergraduates regard laboratories as…

Describes the use of a microcomputer in studying a model experiment (Brownian particles colliding with thermal particles). A flow chart and program for the experiment are provided. Suggests that this experiment may foster a deepened understanding through mutual dialog between the student and computer. (SK)

Discusses the development of a curriculum in physics and biology designed to help prepare academically disadvantaged college students, most of whom are members of racial or ethnic minority groups. Reasons are given for addressing concept formation and reasoning development together, and for direct experience preceding discussion of formal…

Summarized are the key features of the revolution in electronics, namely (1) capacity, (2) cost, (3) speed, and (4) size. Outlined also are some possible implications for the future with particular reference to telecommunications, medical services and education. (CS)

A lesson from a physics textbook for secondary students was redesigned in three versions and given to 600 students. Results of achievement measures suggested that one of the experimental versions (which stressed the visual aspects of the printed page) was superior to the standard and the other experimental versions. (GT)

Discusses how the British Post Office is using the Prestel information retrieval system. The information structure adopted for the Prestel databases and how the Prestel system hardware works are presented. Computer system software, types of information, and the impact of Prestel system on society are also presented. (HM)

Discusses three research topics which are concerned with eminently practical problems and deal at the same time with fundamental fluid dynamical problems. These research topics come from the general areas of chemical and biological engineering, geophysics, and pure mathematics. (HM)

Explains that education and research, after having been neglected during the Cultural Revolution in China, are once again receiving emphasis, aided by extensive reading and by the reprinting of Western scientific literature. (Author/GA)

An experiment for senior college undergraduate physics students is described. Amorphous tungsten trioxide films are suggested for use since they have a unique electrochromic system. (Author/SA)

Provides a nuclear film bibliography grouped into the areas of: building and using the bomb; living with the bomb; and living with nuclear power. These films are for mature high school students and older. (MLH)

Describes the procedures used to evaluate the effectiveness of the teacher education curriculum, Physics for Elementary Teachers, including the measurement of students' understanding of physics, understanding of science, and attitudes toward science. (MLH)

Presents a measurement of the time and resources committed to traditional student actions such as reading and working homework. The perception of the educational value of each action for both students and faculty is captured. Basic educational efficiencies are computed for a traditional mechanics course and a nontraditional hands-on Electricity…

Presents a version of the crush-the-can demonstration which is a hands-on activity in which students use an inexpensive, easily made holder for the can called Charlie's clamp. Includes some suggestions for the follow-up discussion. (DDR)

Describes projects for high school physics classes that use computer tools including integrated software packages, graphing calculators, and calculator-based lab and microcomputer-based lab. Sites available on the World Wide Web are discussed and specific examples of experiments based on Galileo and Newton are included. (LRW)