"The brilliant educators featured in American Teacher represent a wide assortment of backgrounds, academic subjects, experience levels, scholastic environments, and student demographics. Yet regardless of their many outward differences, there are certain shared ideas and principles about teaching that can be gleaned from all their profiles. I've gathered this group of precepts into the Twelve Rules for Being a True Classroom Hero. Of course there are no absolutes when it comes to defining the formula for great teaching (see Rule #1 as case in point!), but what follows is an excellent starting place."
Via John Evans