Describes a set of experiments for an undergraduate laboratory which demonstrates the relationship between velocity, mass, and temperature in a gas. The experimental method involves time-of-flight measurements on atoms excited to metastable states by electron impact. Effects resulting from recoil in the electron-atom collision can also be…

The author presented some historical facts regarding sensitivity training, discussed concerns of some key professionals in the field, and described some facets of sensitivity training programs. (Author)

Speed and simplicity allow the refractometer to be used at many levels of instruction. The optical theory for its operation is reviewed, as are the various uses of the refractometer, including its usefulness in introducing and demonstrating optical theory and in determining optical properties of minerals. (PR)

The new industrial center facilities at North Central Technical Institute is an integral part of a five building complex designed as a regional service center for adult vocational-technical education. (GR)

Suggests a safety program for electricity and electronics courses of industrial arts or trade and technical education. (GR)

Presents the procedures, results, and conclusions of a study to compare the effectiveness of the open-ended chemistry laboratory with the traditional laboratory. Different classes of high school students in a college-preparatory chemistry course were exposed to the two laboratory techniques. The achievement tests and the Watson-Glaser Critical…