The topic of this article is the development of an instrument which is designed to aid the unit developer in the revision of elementary and secondary school units. (Author)

THE VARIOUS TYPES OF EDUCATIONAL TELEVISION EQUIPMENT PICTURED IN THIS DOCUMENT ARE CAMERAS, RECEIVING SETS, AND RECORDERS. OTHER VOLUMES OF THIS SERIES ARE ED 003 738 THROUGH ED 003 746. (LP)

Techniques for detection and measurement of carbon monoxide (CO) in air are of interest and utility in many aspects of automotive safety. CO concentrations may range from less than 100 parts per million (ppm), or 0.01 percent, to about 10 percent by volume. Gas indicator tubes have been used for many years primarily as detectors of hazardous gases…

The sensor is a mass spectrometer system which continuously monitors the atmospheric constituents of hydrogen, water vapor, nitrogen, oxygen, and carbon dioxide, and monitors the Freons on a demand sampling basis. The manual provides a system description, operational procedures, and maintenance and troubleshooting instructions. Circuit diagrams…

Describes surface-finish characteristics and presents an approach by which the teacher may incorporate these new materials into a course of study. (GR)

A study of the development of commercial electron spectroscopy of chemical analysis (ESCA) instrumentation over a span of three decades is presented. The field has also been extended significantly by use of synchrotron radiation as a bright X-ray source, which has opened new areas of research in solid-state physics, molecular biology, and many…

The author describes four capacities--interpretation, instrumentation, interaction, and inner direction--that are as important as traditional academic subjects in preparing young adults for college and career success. He suggests how high schools should address each of these capacities. For example, to develop students' capacity for inner…

This paper sits within the research on the affordances of new technologies in the mathematics classroom and focuses on a specific feature that is available in dynamic geometry environments, i.e. measuring tools, within the context of conjecturing and proving in open geometry problems. We develop a classification of different modalities of…

Describes the desk top calculators now on the market, including manufacturers, prices, and functions performed. Provides a table of specifications for programmable desk calculators. (MLH)

This article discusses an instrument devised to provide objective and reliable information about the fundamentally time-dependent nature of observable motor performance. (Author)