When I started teaching, I was told “remember that you always know more than they do”. I think that when we first start teaching, we feel like we should be able to answer every question. But the fact is, we continue to learn as we go if we are striving to be the best instructor we can be. That means that we must know how to present ourselves professionally at all times and know how to handle classroom management. If the class is unruly your outcomes may be only partially effective.