MOUNTAIN VIEW, CALIFORNIA – When I taught at Stanford University in the 1970’s, I was always on the lookout for ways that technology could help to improve learning. The big innovation of that time was that my classes were broadcast around the San Francisco Bay Area.
山景城，加州—20世纪70年代，我在斯坦福大学教书的时候，我总是在寻找利用技术改善学习的方法。当时的重大创新是我的课通过广电信号送到旧金山湾区周边。我们还把授课录像带寄给更远的地区。