What Makes Teachers Special? - Pedagogical Content Knowledge

What makes a teacher special? What does a teacher need to know? What is the most important thing a new teacher needs to develop?

Teachers have a very particular type of knowledge. The old saying that if you can't do, teach, sells short what teachers know. Pedagogical Content Knowledge described the knowledge teachers develop about how to teach particular subjects to particular people. This concept was developed by Lee Shulman in 1986, but is just as relevant for teachers today.