The modern educator draws too neat and stiff a distinction between lecture and discussion. A good teacher lectures during discussion, discusses during lecture. The line which separates the two is not nearly as neat as we think.
Lecture is the authority of the teacher; discussion is the autonomy of the student. Obviously, these things need each other, even as God gives Job autonomy but does not hesitate to lecture Job.
There are still faint glimmers of civilization left in this barbaric slaughterhouse that was once known as humanity. 