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School Museums served as the central administrative unit(s) for visual instruction by (their) distribution of portable museum exhibits, stereographs (3D), slides, films, study prints, charts, etc.
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Keystone View Company published "Visual Education", a teachers guide to lantern slides & stereographs.
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The first catalog of Instructional film was published and later that year the public school system of Rochester, New York, became the first to adopt films for regular instructional use.
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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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In 1932, there was a merging of three existing national professional organizations for visual instruction.
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In 1946, Edgar Dale developed his famous "Cone of Experience" to explain the relationships of the different types of visual and audio media and their roles in the learning process.
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The Federal Communications Commission (FCC) designates 242 channels for educational use. This led to the rapid development of a large number of public television stations.
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Bloom's Taxonomy was introduced under the leadership of educational psychologist Dr. Benjamin Bloom to promote higher forms of thinking in education instead of just role learning and/or memorizing.
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By the early 1970s, the terms educational technology and instructional technology began to replace audiovisual instruction to describe the application of media for instructional purposes.
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IBM introduced its first personal computer. Time magazine then named this computer its "Man of the Year" in 1982.
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There was an increased interest in using computers for instruction by the early 1980s. In 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.
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Apple's MAC becomes available.
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Toshiba released its first mass-market consumer laptop.
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Personal Digital Assistants (PDAs) were released by Apple Computer Inc.
