All instructors have to assemble their own pedagogical toolkit from the many resources out there and restock it (and recreate it) as necessary.  There is no one single way of being effective.  There is no magic spell (previous post on this blog to the contrary) that will make all pedagogical techniques effective all the time.  It is very difficult to generalize from one instructor’s experience to the next.  One gets on with it.  —The Little Professor