Hi Marina,
You make a very good point about needing to keep things fresh if we as instructors are going to keep bringing our A game to the classroom. I try to do at least one thing differently each time I teach a course to see how it works. This does two things for me, one I get excited about seeing if it will work and two it challenges me to come up with the new method, idea or delivery. This way I can continue to improve in my teaching while adding additional teaching tools to my professional development.
Gary
