Discusses the planning, preparing, assessing, and evaluation of language laboratory technology and pedagogy. (AM)

An investigation was carried out in Sweden to examine language laboratory use. The degree of use, equipment function, method of use, access to lab programs, instruction to teachers on use, teachers' and pupils' attitudes and difficulties were studied by means of questionnaires. Improvement suggestions are made. (CHK)

This resource book contains 40 chemistry labs and provides a single solution to the problems of purchase, storage, use, and disposal of chemicals. The text is designed to be used alone or integrated with current textbooks. A mixture of microchemistry and macrochemistry is used to provide variety and reflects trends in research and industry. Most…

Discusses a lab experiment where rubber bands are used to determine a spring constant and to predict the range when the band is stretched and fired. Included are the formulas involved. (CC)

A study is reported of 715 second year shorthand high school students comparing traditional instruction with laboratory instruction. Students in the shorthand laboratory (individualized instruction through use of various audio taped materials) achieved significantly higher in a transcription task than traditionally-taught students. (SC)

Describes an experiment in environmental chemistry which serves to determine the dissolved oxygen concentration in both fresh and saline water. Applications of the method at the undergraduate and secondary school levels are recommended. (CC)

Discusses the use of aluminum chloride and other Friedel-Crafts type catalysts to polymerize 2-methylpropene and the application of such products in industry and agriculture. Includes a laboratory experiment on the polybutene preparation suitable for high school purposes. (CC)

Describes a number of activities and experiments designed to add interest and increase understanding in the secondary school physics laboratory. (JR)

The first part of a two-part article describes an experimental approach that can be used in teaching the concept of saturated vapour pressure. This leads to a discussion of refrigeration cycles in the second part of the article. (JR)

Describes an elementary school science activity in which students conduct experiments to verify their hypotheses relating to the effect of salt and other chemicals on the melting point on ice. (JR)

Describes an experiment, conducted by sixth-grade students, with mice that demonstrates the importance of a balanced diet. (JR)