Describes a laboratory practical on animal behavior suitable for senior secondary school or university biology classes. Several separate exercises relating to the house building behavior of caddis fly larvae are detailed, together with the time required for preparation. (JR)

Paper based on experiment 1 which was presented at the Thirteenth Annual Meeting of the Psychonomic Society, St. Louis, Mo., 1972. (RS)

Reports on an effort to teach poetry and not simply expose the student to it. (Editor)

Usually the textbook descriptions of analytical methods fall short of making comparisons among several methods employed for analysis. Emphasis should be placed on making decisions about using a particular method on the basis of its merits. Listed are experiments that could be used for instruction. (PS)

Describes a model that illustrates the operation of principles of adaptive radiation. The model used is constructed of materials that can be easily obtained. Suggestions for use are provided. (PS)

Applications of wheels are shown to be an invaluable tool in teaching the processes and technology of science. (DF)

Research supported by a grant from the National Research Council of Canada. (RS)