"large classes, lot of students and one teacher"
Give me an example of a real-life represents the "interdependence of these elements together," And what similarities and differences between them?
I agree that it would help if you could make the question a bit clearer. In particular, it would help to know how a "large class" is being defined. Do you have a precise number in mind? In general, I would say that the larger the class, the less successful it is likely to be if one teacher is given responsibility for it.
I have to agree that your question seems very vague. I, also, think that "large classes" and "lots of students" is the same thing. As for their interdependence upon each other, large classes essentially depend upon lots of students. Therefore, they are naturally, interdependent.
I wonder if you could clarify this a little. There does not seem to be any difference between the ideas of "large classes, lots of students, and one teacher." These three things seem only to interact in that "lots of students and one teacher" seems to define what a "large class" is. But it doesn't seem likely that this is what you are asking. Can you clarify?