Presented is an alternative approach to teaching the Physical Science Study Committee (PSSC) wave model of light, using microwaves. Effectiveness of the alternate approach was determined by student achievement of six objectives. Both experimental and conventional PSSC methods were satisfactory for reaching the objectives. (DS)

Argues that chemistry has major implications for our understanding of the nature of things including ourselves. Illustrations have been drawn from the chemical elements, chemical equilibria, and chemical entropy. Chemistry should not be presented as something justified only by its practical results while the other sciences raise the ultimate…

The techniques of radioactive dating, thermoluminescence dating, cesium magnetometer detecting, x-ray flourescence analysis, and neutron radiography are briefly explained. Examples are given in the use of techniques in determining age and composition of paintings, ceramics, and archeological finds. Included is a history of Lawrence Radiation…

Develops a motivational science perspective on student motivation in learning and teaching contexts that highlights 3 general themes for motivational research. The 3 themes include the importance of a general scientific approach for research on student motivation, the utility of multidisciplinary perspectives, and the importance of use-inspired…