The 1987 GTE concept video Classroom of the Future demonstrates videophone technology as an essential tool in making people more productive. Sadly, it doesn't seem like kids of the future are any more intelligent. Check out part one of this paleo-futuristic gem.
Homework in the Future (1981)
The Answer Machine (1964)
The Road Ahead: Future Classroom (1995)
Closer Than We Think! (1958-1963)
Connections: AT&T's Vision of the Future (Part 7, 1993)