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Types of Audio-Visual Aids to Instruction
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Television reception, similar to ultra high frequency and frequency modulation in radio, is limited, roughly, to the horizon surrounding the transmitting antenna. Normally, the range of good reception is
Photo Courtesy National Broadcasting Co.
Television Set, Ready to Broadcast
limited to a circular area with a radius of forty to fifty miles, but good reception has been experienced at greater distances.
The future possibilities of television as an aid to instruction is most promising. It is not expected, however, that its use will retard or replace the use of motion pictures, radio programs, or any of the other valuable teaching aids. Instead, it should supplement classroom instruction by making available types of programs which may be presented more effectively through this new medium.
The majority of the audio-visual aids now in common use among schools were first utilized extensively in industry and later adopted by schools. This has caused a lag between general use in industry and widespread application to the improvement of classroom instruction. In order to avoid or shorten this lag in the school use of television, the National Education Association has appointed a Television Committee, which is working under the chairmanship of J. Raymond Hutchinson, Thomas Jefferson High School, Elizabeth, N. J.
The objectives and purposes of this committee, as stated by its Chairman in the December, 1941, issue of The Nation's Schools, are as follows: