Classroom use of computers is briefly discussed. The role of hand calculators in the mathematics classroom is analyzed in general, and questions are raised concerning the effect of calculators on student skills. (DT)

The results of a survey on the use of eleven types of audiovisual materials by mathematics teachers in New South Wales are presented. (SD)

Describes models for selection, genetic drift and migration for teaching high school biology. (LS)

Shortcuts to use when performing operations with the calculator are given. Algorithms discussed include reciprocals, powers, parentheses, infinite series, and synthetic division. (MP)

Discusses uses of programmable pocket electronic calculators in the secondary level classroom. Uses discussed include: grading, laboratory, exercises, computing T-scores, and a quantitative approach to chemical equilibrium. (SL)

Describes six commercially available toys useful in demonstrating various chemical principles in the secondary school classroom. (SL)

Describes a game in which students practice process skills in the science classroom. (LS)

An exercise in chromatography that students can perform in class or at home using inexpensive, familiar materials is presented. (EB)

Describes how two topics in the school mathematics curriculum could be of value in teaching school biology. (LS)

Lists film material under the following four topics: Animal Nutrition, Photosynthesis, Parasitism and The Problems of Overpopulation. (LS)

The isometric grid geoboard can be used to demonstrate the nine-point circle theorem. (SD)

Using the overhead projector, or overlays on an original pattern, a variety of tessellations can be generated. Several illustrations are included. (SD)

A review lesson based on a sports car rally is described and illustrated. It teaches detailed map reading as well as providing drill on any subject desired. Pairing students is beneficial for several stated reasons. Some students may design their own rally for presentation to the class. (Author/KM)

Describes the use of films as primary learning material, aimed at developing some of the higher level skills which are the, often unreached, objectives of practical courses. Results of a first trial use are cited. (EB)