This paper reports findings from a project that explored the use of a modified form of "lesson study" in a one-year programme of secondary school initial teacher education (ITE). Twelve mentors and student-teachers worked in pairs to design and teach two "research lessons" in the course of two eight-week teaching practice placements as part of a university-school partnership for the preparation of new teachers. Participating student-teachers reported that engagement in this form of lesson study with a mentor was an effective way to help them grow individual teaching skills, knowledge and confidence in teaching placements. In addition, in most cases, it enabled active and creative participation in a community of teacher learners. However, engagement in lesson study not only supported student-teachers to meet "qualifying to teach" standards, but also offered opportunities for holistic study of teaching and learning, leading to growth in what we characterise as "pedagogic literacy".