I have found, after almost 6 years of teaching, that changing the delivery methods from quarter to quarter helps me to refine the course content, reach more students with different learning styles, and keep the class fresh and interesting. I have moved away from straight lecture toward shorter lectures with question/answer periods, audio/video presentations, hands-on practice or case studies that illustrate reading/lecture topics. I didn't initially realize that students were not retaining much of a 45 minute lecture until it came to applying some of these concepts through projects, quizzes or exams. I finally came to the conclusion that less is actually more with lecture; I find that letting students "direct" the lecture is much more effective, because I'm teaching them what they don't understand rather than just reiterating reading...