Покупатели российских нефти и газа собрались строить новый нефтепровод

· · 来源:tutorial资讯

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.

Be sure to check out Mat Smith's writeup on the Robot Phone for a more in-depth look.

Australia,这一点在体育直播中也有详细论述

Последние новости。业内人士推荐体育直播作为进阶阅读

Москвичей предупредили о резком похолодании09:45,详情可参考体育直播

存储芯片“涨声”不断