Describes a course based on three levels of student performance (achievement, rationalization, creative). Students work on the achievement level at their own rates with lectures available, but not mandatory. Laboratory exercises are required. Grading is dependent on the amount of fulfillment of all three levels. Year-end assessment was determined…

Describes various techniques for conical chromatography together with advantages and disadvantages. (DF)

Twelve new experiments in biology are described by teachers for use in classrooms. Broad areas covered include enzyme action, growth regulation, microscopy, respiration, germination, plant succession, leaf structure and blood structure. Explanations are detailed. (PS)

This transition, observed with an inexpensive ultraviolet photometer, is a potentially useful experiment for an advanced freshman class because it introduces several concepts of general physical interest. (DF)

In this second article on thin layer chromatography six kinds of experiments are suggested for science teachers to use in schools. (PS)

Discusses the use of an integrated circuit operational amplifier in an introductory electronics laboratory course for undergraduate science majors. The advantages of this approach and the implications for scientific instrumentation are identified. Describes a number of experiments suitable for the undergraduate laboratory. (Author/DF)

Describes a program that attempts to bridge the gap between class lectures and laboratory. Students are involved in individual investigations. Effective use of undergraduates is made for instructional purposes. (PS)

Describes material used in a first semester introductory physics laboratory for nonscience majors. The computer is used for data manipulation and in some cases, computer programs allow simulation of experiments with the possibility of altering values of parameters or experimental details. (Author/TS)