In the dominant perspective, induction occurs in schools after teachers have been employed, and induction programs provide systematic and planned assistance to beginning teachers. In a second perspective, induction is a two-stage process, beginning in preservice education and ending in the workplace, with the intent of developing each teacher's master identity. A third perspective on induction accommodates the contributions of the first two. It differs in viewing induction as a three-stage process. Induction requires the mastery and internalization of an occupational culture, some of which is organization specific. An essential part of this culture is an identifiable, integrated set of professional norms that guide work practices.