Hi Sandra,
You are doing a number of very good things in relation to your instructional delivery. Several things you might want to try would be to have the students role play, work on case studies and make presentations. I often create a group composed of four students. Each student is assigned a portion of the presentation. They do the research and each student presents for 5 or 10 minutes depending on the length of the class sessions. The panel sits behind a table in front of the class. By having three other people up there with them, sitting down… >>>