In the 1950s, legendary behaviorist B.F. Skinner debuted his version of a “teaching machine,” based on the 1924 invention of Ohio State University psychology professor Sidney Pressey. The contraption was loaded with a piece of paper with questions, and students pressed keys indicating the correct answer, at which point another question would appear. Both Pressey and Skinner ran into similar problems, though, failing to implement the technology in schools. Educators weren’t convinced of the machine’s benefit, which prioritized individually paced learning not conducive to students of the same age moving through a grade level at the same time.
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The use of a computer tablet to communicate with officials may mean less human-to-human contact but the authorities believe that the SPS could increase access to the police in places where there may not be enough personnel to man a fully fledged station.。关于这个话题，WPS官方版本下载提供了深入分析
Apple's big week continues as the company dropped a slew of new products on Tuesday.