This paper explores the agency of student teachers during the Post/Professional Graduate Certificate of Education (PGCE) year at a Higher Education Institution in England. It presents part of the findings of a year-long investigation into the reflective practice of student teachers during the PGCE year. The multi-method study includes surveying student teachers (n = 101) and longitudinal interviews with student teachers (n = 6). One of the aims of the study was to investigate the impact of the social environment on the student teacher. The research analysis found that the complex environment the student teachers exist in can be both supportive and constraining.