A projection system in a classroom with an Internet connection provides a window on the world. Until recently, projectors were expensive and difficult to maintain. Technological advances have resulted in solid-state projectors that require little maintenance and cost no more than a computer. Adding a second or third computer to a classroom…

THE USE OF AUDIOVISUAL TECHNOLOGY OVER A SIX YEAR PERIOD WAS STUDIED. FROM A BASE OF 2,927 SCHOOL DISTRICTS, 238 DISTRICTS WERE STUDIED TO DETERMINE THE RESOURCES AVAILABLE, THE EXTENT OF USE OF THESE RESOURCES, FACTORS WHICH ENCOURAGE OR INHIBIT USE, AND PROSPECTS FOR THE FUTURE. ESTIMATES OF AMOUNTS OF ELEVEN ITEMS OF EQUIPMENT AND FIVE…

THE OVERHEAD PROJECTOR IS A SIMPLE AND EFFECTIVE TEACHING AID IN MATHEMATICS INSTRUCTION. MOST TRANSPARENCIES FOR PROJECTION CAN BE MADE EASILY AND INEXPENSIVELY BY THE TEACHER USING READILY AVAILABLE MATERIALS. ALTHOUGH EXPENSIVE, SOME COMMERCIALLY PREPARED TRANSPARENCIES ARE INDISPENSIBLE, BECAUSE OF INVOLVED PREPARATION TECHNIQUES OR EQUIPMENT.…

The DIATEST responder system is a control system for fully programed running of diagnostic tests of multiple-choice type. The system makes use of the control unit earlier developed at the Institute of Technology for programed four-screen slide projection and the electronic response analyser (ESAU). Presentation of a question is done audiovisually,…

Modern technology has developed the primitive still projector into a powerful audiovisual tool. In response to a growing need for a comprehensive guide to the uses of such an aid, this booklet offers, in its first six chapters, a detailed examination of the various types of still projectors and supplementary equipment, care and maintenance of the…

Since executives are increasingly using visual aids, a course of study in Graphic Communications is proposed which would train secretaries in the preparation of visual aids and operation of audio-visual equipment. (AG)

A description of how overhead projectors were used to keep score at a wrestling tournament. (HB)

A consultant answers questions aimed at preventing costly planning errors and misapplication of A-V system designs. (Author)

Description of an apparatus that presents automated audiovisual displays requiring multiple response choices. (MH)

The safety of projectors and related viewing devices for school, home, and business use is of paramount importance. The Advisory Committee on Safety (ACOS) of the International Electrotechnical Commission (IEC) has established a working group to consider the problem of projector safety and to make recommendations for safety standards. (CMV)