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The first school museum was established in St. Louis Missouri.

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Radio started gaining popularity and many people believed it would be the medium that would revolutionize education.

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Films gained popularity during World War two era and they were used for training military purposes. Between 1943-45 more than 400 films and over 600 filmstrips were created.

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Instructional television came into play for instruction purposes. The Federal Communications Commission created 242 television channels for education purposes in 1952.

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Computers came into play in the 1980s and many educators were interested in microcomputers due to their low cost and size and believed showed great promise.