Film and radio: the promise of bringing the world into the classroom : Teaching at the turn of the century ; Film use in the classroom ; Radio in the classroom: The assistant teacher -- The use of instructional television, 1954-1983 : The beginnings ; Impact of instructional television on the classroom teacher ; Level of teacher use -- Explaining teacher use of machines in classrooms : Accessibility of hardware and software ; Implementation ; Of the innovation ; The classroom and school as work settings ; The nature of the teaching profession ; Analyzing teacher use of machines -- The promise of the computer : What is the nature of the innovation? ; How is the innovation being introduced? ; Who are the users, and how much are machines used? ; Should computers be used in classrooms?.
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