Through the use of discrepant events, children can be challenged at a variety of levels to become successful investigators. (PS)

Describes the conduct of a one-semester laboratory course for electrical engineering sophomores through the use of rack-mounted instruments and printed circuits. Concluded there was greater student and instructor interest and creativity in both lectures and laboratory. (CC)

An educational experiment demonstrates that observer bias is a educational experiment demonstrates that observer bias is a factor in the evaluation of teaching. Argues that the function of a creative administrator is not to evaluate teachers for merit increments, but to foster a climate in which communication is possible between teacher and child,…

Special issue on Black Dialect: Historical and Descriptive Issues'' edited by William A. Stewart. (RS)

Describes an experiment which can be used to provide an introduction to study of reaction mechanisms and training in use of simple analytical and instrumental techniques. (PS)

A device which provides an inexpensive means for making precise studies of the kinetics of gas molecules is discussed. Two experiments are described: (1) Measurement of the vibrational relaxation time of gas molecules and (2) determination of intermolecular forces in molecules. (Author/DF)

Research supported in part by grants from the National Institute of Child Health and Human Development. (RS)