Hi Susan: Excellent. A PPT must include discussion, either by the students or teacher, otherwise it's just reading, and that's probably not the best use of the students time. I find a story or illustration related to the topic usually can bring folks back to task. A good teacher can make that a seamless process, almost as if it were planned that way. Remember too, students have stories and life experiences that other students may be interested in. I would not hesitate to periodically invite students to share. Then bring it back to topic. Regards, Barry