Discusses the effectiveness and the history of a simplified teaching practice, microteaching, which is carried out under controlled conditions using sound and vision feedback to modify operant teacher behavior. (Author/RK)

Paper presents a course design which attempts to effect a meaningful integration of both concepts and experience and to deal with some of the problems and issues of doing laboratory training in the university setting. (Author)

Part 1 appeared in numbers 18-19, 1972. (DS)

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

Problems in constructing and revising mathematical workcards are discussed, with four sample workcards included. The Fife Mathematics Project, incorporating workcards and other instructional techniques, is described. (DT)

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)

Illustrates the use of a flow chart to facilitate planning of laboratory exercises by two chemical examples. (AL)