They say that we get more conservative as we get older, that we lose our youthful idealism and replace it with mature resignation, that we become cynical, and that we are less willing to break the rules and become more prone to following a set of rigid routines. However, I don't think this is necessarily the case for those of us in the teaching profession. Nor should it be, in my opinion. In fact, in my experience, a large part of our teaching lives will be spent unlearning what...