The experimental use of interactive computer systems in a secondary school and the evaluation of this program are described. (SD)

Describes a series of experiments designed to verify the various relationships implicit in the ideal gas equation and shows that the success of the Graham's law effusion experiments can be explained by elementary hydrodynamics. (GS)

Presents a mathematical demonstration that the least action principle enables both the trajectories and the conservation laws (of energy, momentum, and angular momentum) to be obtained without using Lagrange's equations. Discusses an experimental procedure which utilizes air tables to demonstrate the conservation laws and interactions at a…

Describes a device which employs two diffraction gratings and three or four simple lenses to produce arbitrary absorption or emission spectra that may be doppler shifted and spectroscopically examined by students some distance away. It may be regarded as a sort of artificial star whose spectrum may be analyzed as an undergraduate laboratory…

Describes the Small Grants Award program developed by the North Country School Study Council and the Central New York School Study Council to help finance innovative projects proposed by teachers. (JG)

Studies the effectiveness of therapeutic modeling using dissimilar or similar models. Pre- and post-measures of fear were taken on behavioral and attitude dimensions. Behaviorally, model similarity in level of fear was unimportant, while similarity in age was. More similar models on either variable produced greater change in attitudes. (Author/SJL)

Describes three experiments which investigated the behavior of "Colisa fasciata" males in full breeding condition subjected to competition for nest sites and a single female. Concludes that for these fish territorial dominance is established in a relatively short time, the period varying with the intensity of competition. (MLH)

Describes an experiment in which the rate of reaction can be followed using a colorimeter and data can be used to determine order of reaction, rate constant, and energy of activation. (GS)

Author relates how his school district taught elementary students to operate media equipment. (Author)

Describes an introductory course in geology for nonscience majors that involves students in laboratory exercises related to rock classification. (GS)