What does it mean by "getting rid of lectures?" and replacing them with screens?
In the high school level, I have heard this referred to as "flipped classroom". The typical way a class works is that the students hear a lecture, and then they try homework. In the flipped classroom, the student listens to a "lecture" on the screen, and then during the classroom time they would work through problems, so if they don't understand something, the teacher is there to help them.
So instead of the teacher present the material during the class time, the teacher spends her time focusing on the material that the students did not get from the lecture.
But this model seems to fit better with math style courses, rather than something like history.
In other words, there is no one way fits all model.
Melissa