ABSTRACT
Teaching is a complex activity. As a teacher educator, I experience the complexity of teaching everyday through the struggles, dilemmas, and triumphs of preservice and inservice teachers with whom I work. As I peruse the 51 chapters of Handbook of Research on Teaching (Richardson, 2001), I am struck by the breadth and depth of what teachers must know and be able to do, and how this is represented in an extensive knowledge base.
