Special edition devoted to media in modern language instruction. (RS)

Experimental data, Federal and State regulations, and user data are presented to assess the safety factors of low-power lasers. General safety precautions, basic laser theory, the place of the laser in the classroom, and some introductory exercises are also presented. (Author/TS)

Model lab trains young and old in cluster programs for electricity. (Editor)

Provides laboratory design and materials needed to have students prepare cell cultures. Necessary techniques are explained along with an outline of some basic and advanced exercises. (DS)

Describes the features and operation of an inexpensive digital pH meter. Includes a schematic diagram of the pH meter and a parts list with cost and source of each part. (SK)

Describes experiments in which inexpensive or standard laboratory equipment is used to measure several macroscopic magnetic properties of thin rare earth garnet films used in the manufacture of magnetic bubble devices. (Author/CS)

Describes the methods and materials needed to make stage and ocular micrometers. These can be used in secondary school and college level biology classrooms. (MA)

Presents an overview of the construction techniques of dye lasers suitable for student projects and briefly describes possible laboratory projects. (JN)

Provides guidelines prepared by the National Science Teachers Association for the use and care of invertebrate and vertebrate animals in the classroom. Suggestions are made for conducting experimental and observational studies. (CS)

Answering critics of language laboratory effectiveness, this article presents a methodology for laboratory work which includes working in partnership. Necessary technical equipment is described. Learning goals are proposed, and possible further developments in the method are suggested. (IFS/WGA)