Unfortunatley lecture is part of the learning procedure. It is all in the presentation. Instead of looking like a civil war photo all stoic and just spewing cirriculum, walk around, have students get out of there seats and see the examples you are talking about(if possible of course, we teach mechanics) Ask questions, use there answers and questions as a review for the others,don't just answer for them. I take votes to see who feels if the issue is correct. and we talk about both sides of the issue and correct accordingly.
