An urgent goal for science teacher educators is to prepare teachers to teach science in meaningful ways to youth from nondominant backgrounds. This preparation is challenging, for it asks teachers to critically examine how their pedagogical practices might adaptively respond to students and to science. It asks, essentially, for new teachers to become researchers of their own beginning practice. This study explores the story of Ben as he coauthored a transformative action research project in an urban middle school as part of a teacher education program and, later, over his first year of teaching at that same school. We describe how Ben and his partner teacher created innovative spaces for science learning. This offered Ben an opportunity to make some of his deeply engrained pedagogical beliefs come alive within a context of distributed expertise, which provided for him a space of moderate risk where he could afford the chances of failure without undermining how he felt about his own capacity as a teacher. Our study highlights the importance of creating reform opportunities within the context of teacher education programs that may help beginner teachers construct positive images of teaching that they can hold on to in their future practice.