Responses to questionnaires sent only to schools known to have language laboratories show that as of 1958, 240 colleges and universities and 64 secondary schools in the U.S. have such laboratories. Of 40 foreign languages, French, Spanish, German, and Russian are taught most frequently. Laboratory organization plans vary; they include classrooms,…

This publication was prepared for elementary teachers and other local personnel responsible for providing, maintaining and using living organisms to enhance elementary science programs. The manual contains a foreword, general information, and an appendix. It gives information concerning equipment and supplies, establishing and maintaining an…

This brochure contains guidelines concerning the use of the master control panel of the language laboratory at the University of Hawaii. Three sections of guidelines are provided: (1) master control panel including teacher headset functions and student booth functions, (2) "things to know"--including the switch functions, instant communication…

In order to meet the needs of both safety and economy, laboratory ventilation systems must effectively remove air-borne toxic and flammable materials and at the same time exhaust a minimum volume of air. Laboratory hoods are the most commonly used means of removing gases, dusts, mists, vapors, and fumed from laboratory operations. To be effective,…

Suggests a laboratory introduction to solid-solid phase transitions, thermochromism, and color changes associated with changes in ligand coordination suitable for undergraduate students in physical and general chemistry. Describes the preparation and analysis of the experiment. (CW)

Describes an apparatus that can be used to measure low gas pressures over a range of temperature in the undergraduate teaching laboratory. Discusses an experimental procedure and theory for pressure temperature measurements with this apparatus. (CW)

Describes precautions that should be taken and procedures that should be followed to minimize the risk of accidents in the school science laboratory. (JR)

A federal audit which began in June 1982 and should be completed by November is being conducted to determine possible extravagance, misuse, waste, fraud and abuse of laboratory equipment purchased on federal contracts and grants. A list of waste and abuse found mostly at industrial labs is included. (JN)

Described is a procedure for assessment of student performance in laboratory work (practical work) in Advanced Level Biology in England. Some historical background is included. (PB)

Describes a laboratory experiment which demonstrates manipulation of highly reactive chemicals, use of a gas trap, and simple and reduced pressure distillation. Student must characterize starting material and product with nuclear magnetic resonance and infrared spectroscopy. (Author/SA)

Presents information intended to encourage students to become thoughtful consumers. Discusses the role of pepsin in splitting off amino acids from stomach proteins and the nature of the protein substrate in determining the ph at which pepsin operates. Directions for an experiment are included. (Author/SA)

Describes ideas used to introduce the Australian Science Education Project (ASEP) for the students of Henley High School in Australia by helping students to gain access to lab equipment, facilities and manuals with a minimum of teacher direction. (HM)

Describes a basic introductory chemistry experiment for science majors which departs from synthesis and moves instead into the realm of formulation. As part of a project that reorganizes the introductory chemistry sequence according to subjects with which students are acquainted, this laboratory makes use of oxidation-reduction chemistry to make…

Presents an alternative approach to teaching laboratory chemistry that considers issues such as safety, waste disposal, and cost. Focuses on the micro-scale approach and discusses a number of positive benefits that can be gained from adopting this approach. (DDR)