In Sweden, as in many other countries, the education of high-school physics teachers istypically carried out in three different environments; the education department, thephysics department and school itself during teaching practice. Trainee physics teachersare in the process of building their professional identity as they move between thesethree environments. Although much has been written about teacher professional identity(see overview in Beijaard, Meijer, & Verloop, 2004) little is known about how encounterswith the potentially disparate notions of “what counts” in these three environments feedinto trainee physics teachers’ professional identity work. In this paper we investigate the discourse models (Gee, 2005) that can be found in...