Many teachers resist the use of media in their classrooms, holding an anti-machinery bias much like that of the Luddite movement of 19th century England. Based on experience dating back to the protests by teachers in France against the introduction of books into the classroom in the 16th century, a law of media acceptance in the classroom can be suggested: the deeper the impact of the media on the teaching and learning process, the stronger the negative reaction. The degree of resistance to new media by the teacher increases as the new medium takes over more of the teacher's dominating role in the classroom, as seen in the progression of acceptance of blackboards and books through increasing resistance to educational films and television, teaching machines, and computer-assisted instruction. When educational authorities really want to introduce a reasonably media-minded (and more efficient) educational system, they should impose a compulsory integrated media course and provide a well-equipped educational media center in every teacher training institute. (EW)