It is really important to have interactive discussion in the class. When I teach research methods to graduate student, I pose the discussion questions at the end of the chapter from the textbook and ask the students to give their opinion based on what was taught in that lecture. I try to involve all the students. Once as many answers were given, I try to critique them as far as possible, and then show them the correct answer. I am enclosing a sample for your perusal.
The courses must be in the form of questions and answers, as well as debates, so that all students participate, and they will be attracted to the course topics