Outlines the objectives, materials, and procedures in performing a student laboratory experiment that demonstrates sodium transport in frog skin. (CS)

Compares two methods (batch and continuous) in which microorganisms are used to produce industrial chemicals. Describes batch and continuous stirred-tank reactors and offers reasons why the batch method may be preferred. (JN)

Science education researchers have not used conceptual content of science (with some exceptions) as an important variable in their research. Suggestions are offered as to what kinds of science education research could be done in which conceptual content of science is important. (Author/SK)

Instructions (with diagrams and parts list) are provided for constructing an eye model with a pliable lens made from a plastic bottle which can vary its convexity to accommodate changing positions of an object being viewed. Also discusses concepts which the model can assist in developing. (Author/SK)

Discusses the objectives and design of a five-year degree program leading qualified people to teach in Portugese secondary schools, focusing on integration of educational and subject matter courses and curriculum and course organization. Includes brief comments on evaluation and development of the program. (SK)

An elementary formalism is developed for representing curved space-time which allows transparent qualitative explanation of general relativistic effects and is used to make a conceptual analysis of Einstein's principle of equivalence. A final section outlines a number of student activities. (Author/SK)

Presents some general characteristics of "older" students and describes courses and instructional strategies in the physical sciences related to these characteristics. (SK)

Examples of the application of compound pendulum theory to the practical measurement of the moments of inertia of human beings, farm tractors, and sailing boats are presented. Suggests developing laboratory experiments to measure moments of inertia of hockey sticks, golf clubs, and frisbees, among others. (Author/SK)

Experienced Physicists solve simple textbook problems differently from beginning students. This paper describes these differences using a computer-implemented model that "learns." The research is set in the the context of modern computer-processing psychology, and is related to other work relevant to help people know and learn…

The number of science/engineering (S/E) doctorates awarded to women more than doubled between 1971 and 1981 to 4,020. S/E doctorate production by field (psychology, life sciences, physical sciences, social sciences, mathematics, and engineering) and by field/sex are highlighted. (JN)

Describes a course designed to improve writing ability and ability to use chemical literature, emphasizing course materials, teaching techniques, and effectiveness based on two years of experience. (SK)

Reports using a closed-circuit television system for presenting the concept of homogeneous strain so the complete straining sequence can be followed from the initial state through progressively increasing strain ratios. Suggests photographing the screen for materials for student exercises. (DS)

Details the use of measuring instruments, computer terminals, and other high technology laboratory aids for the visually handicapped chemistry student. Use of these aids at East Carolina University is also described. (CS)

Provides instructions and a list of materials needed to demonstrate: (1) a model of the quantum mechanical atom; (2) principles involved in metal corrosion and in the prevention of this destructive process by electrochemical means; and (3) a Thermit reaction, modified to make it more dramatic and interesting for students. (SK)

Evaluates the effectiveness of student interaction in computer assisted instruction (CAI) in enhancing achievement in chemistry laboratories. One group of students interacted with the computer in simulated laboratory activities; a second group did not interact. Advantages of interactive CAI were found for tasks requiring interpretation and…