1975: And the Changes To Come
Teacher's Helper. In this classroom, the lesson and questions-in spelling, history, geography, and other subjects-are on a series of stacked cards at the top of the device. The student answers the questions by pushing one of four buttons. If he pushes the right one, the page drops down, revealing the next step in the lesson. The machine also scores each student,. thus spots the slow learners for the teacher.
from 1975: And the Changes To Come by Arnold B. Barach