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Open in St. Louis; school museums served visual instructions
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Films, slides and photographs were used in school museums
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During 1914-1923, the viaual instruction movement grew.
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1920s through much of 1930s: radio broadcasting; sound recordings
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The organization was created; now it is called Association for Educational Communications and Technology
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Radio, films and television are used as teaching resources
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Established by federal government; audiovisual devices were used extensively in military and industry during WWII
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Edgar Dale: value of audiovisual materials is their ability to present concepts in a concrete manner
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1950-60s:Interests in TV as a medium for delivering instruction increased
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Personal computers became available for general public; focused on instructional designs
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1990s:Focus on authentic tasks and improving on-the job performances.
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2000s: On-line learning grow in business and schools