 A central role of this class teacher is to provide supportive role models both through personal example and through stories drawn from a variety of cultures, educating by exercising creative, loving authority.Class teachers are normally expected to teach a group of children for several years, a practice known as looping.The traditional goal was for the teacher to remain with a class for the eight years of the "lower school" cycle, but in recent years the duration of these cycles has been increasingly treated flexibly.