Pedagogical knowledge might be defined as knowledge of teaching. Understanding teaching requires one to consider the overarching purposes or aims of education. Fundamentally, the purpose of teaching and education more broadly is that the individual(s) being taught learn something as an outcome of the teaching. Teaching might therefore be characterized as the range of activities a teacher engages in as he or she seeks to enhance the learning of his or her students. The challenge of these simple definitions is that teaching itself is so complex. Teaching is an interaction between a teacher and student(s) that requires not just a knowledge base (both content and pedagogical in nature) but also requires the ability to effectively and efficiently apply that knowledge base in the act of ...