1975: And the Changes To Come

Push-Button Learning. Teaching machines break complicated subject matter into bit-by-bit segments, permitting each student to progress at his own pace. This machine, for example (called the "AutoTutor"), first presents a unit of information. Then come questions based on what the student has learned, together with alternate answers. If the student presses the right buttons for the answers, he is "rewarded" with a new unit of study which appears on the machine. If he flubs the answers, a paragraph of text appears on the screen setting him right, and then he tries again. On the right is a classroom demonstration of the machine -- a scene that will be commonplace in future years in most schools.

from 1975: And the Changes To Come by Arnold B. Barach