This paper explores the current assumptions behind vocational training for graduate teaching assistants at a large, urban, research‐led UK university. Through qualitative evaluation it reflects on the perceptions of participants on a graduate teaching assistant ‘learning and teaching module’ in terms of an interpretation of their views on pedagogic practice. These reflections suggest that three of the assumptions upon which GTA training has been, and still is, predicated view the process in a relatively simplistic manner. The paper suggests that the pedagogic socialization process has been inaccurately homogenized as a postgraduate issue, ignoring the possibility that relatively sophisticated perceptions of good teaching practice are already firmly in place when a graduate enters a doctoral programme.