The complexity of what teachers do is incomprehensible to anyone who has not lived the experience. If one examines, in detail, the multi-dimensional, multi-layered, multi-faceted acts that a teacher performs each teaching day, it almost defies belief for it is beyond heroic. Done well, the impact is to influence students for all the days of their lives. Done well, it leaves students altered for the better. It takes a trained observer to perceive...