History

Let’s have a look at the events that took place in history of educational technology through the video clip.
Technological Revolution
In early 1900s, the media commonly used in the earlier days were pictures, models, charts maps graphs, motion pictures and lantern slides it was originated when the administrative organization in school used instructional media as school museums. The collections of media made the materials for teachers to use in their classroom
It was between late 1920s -1940s progressions in media include sound recordings, radio broadcasts and motion pictures with sound. The first person to introduce educational technology was radio instruction pioneer, W. W. Charters in 1948.

Schools, colleges, department of education and commercial stations provided radio programming to schools, ultimately radio instruction in schools were restrained when television was introduced. The technology of television, teaching machines and programmed learning brought to attention in the 1950s, - 1960s.  The development of 242 television channels considered as one of the most innovative effort for that era and was used for educational purposes; use of televised lessons expanded over a six- state area. Before 1970s, educational technology was synonymous with audiovisual communication and instruction. 
Micro-computers (1980s,) changed the field of technology in education tremendously. International society of technology in education (ISTE) an organization has helped advance the use of technology in classrooms in US. It’s the 20th century audiovisual education showed excess development during and after World War II. It began with an emphasis on audiovisual communications media. Gradually it became focused on the systematic development of teaching and learning procedures which were based in behavioral psychology. 
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In 1980s schools of United States used computers in classroom for instructional purposes ultimately the advancement of educational technology over the decade’s results with 97% of schools having internet connections by 2000.
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References



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