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The first school museum was opened in St. Louis in 1905. Soon after, school museums were opened in Reading, PA, and Cleveland, OH
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The motion picture projector was one of the first media devices used in schools
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Thomas Edison said "Books will soon be obsolete in the schools .... It is possible to teach every branch of human knowledge with the motion picture. Our school system will be completely changed in the next ten years".
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The visual instruction movement grew. Five national professional organizations for visual instruction were established.
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Includes the use of Instructional Radio.
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The U.S. Army produced more than 400 training films and 600 filmstrips, using overhead projectors and slide projectors.
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242 channels were created for education.
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The computer was used by IBM to create Computer Aided Instruction (CAI) in public schools.
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The terms educational technology and instructional technology began to replace audiovisual instruction
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By January 1983, computers were being used for instructional purposes in more than 40% of all elementary schools and more than 75% of all secondary schools in the United States
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Use of computers in schools for instructional purposes was limited.
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One computer per six students, 90% of schools have internet access.
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Internet use increases for training purposes and educational instruction.
