From a piece in IHE, I find SuperTeaching.org. What is Super Teaching? Well, it is a "whole-brain, breakthrough ... with special advantages for "new brains" ... [using] three screens." That's right, chalkboards are the problem. White boards too. Even a single projection screen is not enough if you want to be a Super Teacher. All it takes is three screens and you can "elevate learner concentration and retention." Order today!
In some of the promo videos for the multi-screen classroom mod, you'll see that the same image appears on all three screens. Watch as it captures your attention!