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Differential measurement of a language concept presented via video tape playback to first grade studentsTrullinger, Richard Warren 28 May 1974 (has links)
Educational television began in 1932 at the State University of Iowa. Until 1952, the potential of its contributions to education were not fully recognized. In 1952, however, the Federal Communication Commission created non-commercial television station. From that point in time, educational television has mushroomed.
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