Hi Judith- This takes some real advance work. As you plan your lesson for the next class, prepare some questions that you know will be easily related to by those non-particpating students. This will take of course, getting to know them and their past expereince in advance. Then pose a question like, "Jane, I know you have worked in customer service for several years, have you seen this problem as well? How do you handle it?" Might take some creativity to come up with some questions, but once they start talking in class it gets better! Best wishes for continued success in your teaching career. Susan