This article provides a case study of a student teacher (ST) whose beliefs about social constructivist pedagogy were reinforced by the competing views of teaching and mentoring that collided during her student teaching. This student teacher was assigned to work with two veteran CTs in English. The authors highlight the significant impact of the cooperating teacher’s approach to mentoring on a student teacher’s developing practice. The authors argue that this case study highlights the influence of mentoring on STs’ pedagogy.