A capacitor is discharged to generate an acoustical pulse and start a digital counter which is stopped by a microphone. Differences are accurately measured by positioning the sensing microphone on an optical bench. Results are discussed and extended experiments are suggested. The sources of some components are given. (GH)

Describes a cell that is free-standing and facilitates the collection of evolved gases in test-tubes. A similar cell is used to demonstrate the Kellner-Solvay electrolysis of brine. (GS)

This is the final report of the evaluation of Project CAUSE, a three year project to improve the laboratory portions of undergraduate physics courses at North Texas State University. The report is divided into six sections. Included in the overview are goals and purposes, the instructional format, and the evaluation plan. Demographic profiles…

DESIGNED FOR TEACHERS AND ADMINISTRATORS, THIS WORK SHEET PROVIDES GENERAL AND SPECIFIC INFORMATION ABOUT THE PHILOSOPHY, TYPES, AND USES OF LANGUAGE LABORATORIES IN SECONDARY SCHOOL LANGUAGE PROGRAMS. THE FIRST SECTION DISCUSSES THE ADVANTAGES OF USING THE LABORATORY EFFECTIVELY TO REINFORCE AND CONSOLIDATE CLASSROOM LEARNING, AND MENTIONS SOME…

WAYS ARE SUGGESTED FOR USING THE "AUDIO ADAPTER" IN THE LANGUAGE LABORATORY TO HELP DEVELOP THE SPEAKING SKILLS OF ADVANCED STUDENTS. A DETAILED DESCRIPTION OF THE AUDIO ADAPTER, A TYPE OF JUNCTION BOX, IS GIVEN, ALONG WITH INSTRUCTIONS FOR CONSTRUCTING IT. FOUR TYPES OF SPEAKING PRACTICE ARE DESCRIBED--(1) FREE CONVERSATION, WITH STUDENTS WORKING…

This guide is designed to assist teachers in involving students in individual or small group laboratory investigative experiences in the life sciences. Each of the 22 experiments contains a prelab and postlab section for teachers and a detailed procedures section for students. (Author/CO)

In response to the need for qualified gemologists and the serious gap in gemological training, a study was directed and designed to develop an instructional program which could be used nationally and to establish a vocational gemology program at Paris Junior College. Following the selection of appropriate instructional materials, stations were…

The Joliet Junior College Academic Skills Center provides an illustration of how writing resources can be organized for easy access and how computer assistance enables efficient organization of the center. Over the years, three approaches to accessing materials have been used: the memory of the instructor, handout worksheets with resource…

TRUE PROFESSIONAL STATUS FOR A LABORATORY DIRECTOR, PLUS ADMINISTRATIVE SUPPORT OF SUCH INSTRUCTION, WILL GIVE COLLEGES AND UNIVERSITIES ADEQUATE RETURN FOR THEIR INVESTMENT IN ELECTRONIC EQUIPMENT. BY BEING INVOLVED IN IMPORTANT RESEARCH AND INSTRUCTIONAL ACTIVITIES, THE DIRECTOR OF A LANGUAGE LABORATORY CAN SERVE ALSO TO FREE THE TEACHER AND…

THE DESIGN OF COLLEGE AND UNIVERSITY BUILDINGS USED FOR SCIENTIFIC RESEARCH AND EDUCATION IS DISCUSSED IN TERMS OF LABORATORY SAFETY AND BUILDING CODES AND REGULATIONS. MAJOR TOPIC AREAS ARE--(1) SAFETY RELATED DESIGN FEATURES OF SCIENCE LABORATORIES, (2) LABORATORY SAFETY AND BUILDING CODES, AND (3) EVIDENCE OF UNSAFE DESIGN. EXAMPLES EMPHASIZE…

A SEARCH OF RECENT SCIENCE EDUCATION LITERATURE WAS MADE TO DETERMINE TOPICS IN PHYSICS AND CHEMISTRY THAT WOULD BE TESTED FOR SUITABILITY WITH PROSPECTIVE ELEMENTARY SCHOOL TEACHERS. EIGHT CRITERIA WERE SELECTED AND USED TO GUIDE THE WRITING OF LABORATORY ACTIVITIES. SIXTY-NINE PROSPECTIVE ELEMENTARY SCHOOL TEACHERS USED THE EXPERIMENTAL…

After a brief history of the development of the language laboratory, the extent, quality, and problems of current laboratory use at the elementary, high school, and college level is discussed, as is the relationship between laboratory equipment and teaching methods. Current research is briefly reviewed, and areas for further study are indicated.…

Ten experiments and 27 activities are presented in this handbook. The experiments are related to collisions, energy conservation, speed measurements, thermometry, calorimetry, gas properties, wave motions, and acoustic problems. The activities are concerned with stroboscopic photographs in collision, elastic impact, mass conservation, exchange of…

The scope of facilities required for the conduct of research in health-related sciences is governed by the type of work to be undertaken and the physical characteristics of the building, and can range from a simple office to extremely complex laboratories with numerous utility services. Every laboratory should be designed to accommodate--(1) all…