As a case study, Mr. Johnson uses a film in his history class. He believes the film helps students understand westward expansion and the role of various cultural groups and key events. Mr. Johnson prefaces the film by giving students a list of concepts and events to focus their attention. During class, Mr. Johnson shows parts of the film, leaves the lights on for note taking, but didn't an provide opportunity for questions and discussion. What aspect of this plan does Mr. Johnson need to CHANGE?