Reviews a study on deaf native sign language. Indicates that the modification of natural perceptual categories after language acquisition is not bound to a particular transmission modality, but rather can be a more general consequence of acquiring a formal linguistic system. (Author/SK)

Reports results of a study exploring the effects of preservice secondary teacher anxiety and modeling on acquisition of a science teaching skill and concomitant student performance, using randomly assigned microteaching sessions as treatment and control groups. Discusses results and aptitude-treatment interactions. (CS)

Describes a laboratory course on lasers for high school teachers. Suggests that more students could be reached by having teachers take such a course than teaching students directly. Lasers were lent for experimentation in high schools; teachers were invited to bring classes to the university to see research lasers. (Author/JN

Describes an intelligent lightbulb, an optelectric feedback circuit which bridges the conceptual gap between manual and all-electric servos. The circuit is simple and easily understood in dc terms. Also describes a device for demonstrating wave motion constructed with plastic soda straws. (Author/SK)

Reviews the issue of how to preserve the fruits of research in high technology while at the same time avoiding restrictions on researchers' freedom. One solution proposed by Congress and the current administration would prevent technical data from being transferred overseas as well as other restrictions. (Author/SK)

Describes the astronautic programs and research at the Florida Institute of Technology, Melborne, Florida. Undergraduate and graduate students participate in research, such as Lighter-Than-Air vehicles, optical observation, auroral-magnetospheric research, and geomagnetism. (DS)

Based on a survey of several thousand department heads and instructors in ten disciplines, eight conclusions regarding the current use of computers for instructional purposes are discussed. One conclusion appears to be that many schools make little or no use of computing in undergraduate instruction. (JN)

Describes an experimental setup which allows the student to investigate the resonance characteristics of a vibrating plate using a small, circular steel plate clamped around its perpiphery. (HM)

The results are reported of a questionnaire on the opinions of biology, medical, and agricultural students on the contribution of high school biology to their college biology study. Most students valued this contribution. High school biology influenced achievement in college biology when based on prior learning. (MSE)

A description is presented of the construction and use of a questionnaire for evaluating freshman science courses. It uses a forced choice technique to measure student expectations, influence on students, and faculty objectives. Field tests are used to estimate the procedure's validity and reliability. (Author/MSE)

Discusses procedures, theoretical considerations, and results of an experiment involving the preparation of a tetrahedral nickel(II) complex and its transformation into an octahedral species. Suggests that fundamental aspects of coordination chemistry can be demonstrated by simple experiments performed in introductory level courses. (Author/JN)

Describes a student kinetic experiment involving second order kinetics as well as displaying photochromism using a wide variety of techniques from both physical and organic chemistry. Describes measurement of (1) the rate of the recombination reaction; (2) the extinction coefficient; and (3) the ESR spectrometer signal. (Author/JN)

This research determines whether preservice science teachers' attitudes toward science and science teaching and course achievement differed from those of other majors and whether students enrolled in a special course relating the science studied to science teaching effected attitude change. Science majors had a more positive attitude and higher…

The effects of politicization (government intervention) of universities on scientific achievement and technological development in Latin America are discussed. Imposition of political loyalty tests, dismissal of teachers and research investigators, and supervision of normal student life have deprived teaching and research institutions of academic…

Described is part of the O.P.E. laboratory computer-based biology program designed for undergraduate medical and biology students. Described is an embryology dialogue in which the student proceeds through three stages in the knowledge and understanding of the concept of competence. (Author/DS)