How can you best support teachers in your school, department or MAT to be highly effective and to have high levels of job satisfaction? This session considers why supporting your teachers' development is the most powerful thing you can do to improve job satisfaction, teacher retention and pupil outcomes, and the role that building a strong professional culture plays in this. With a tour of the research and practical ideas to implement, we'll consider topics as diverse as the disadvantage gap, teacher effectiveness and self-efficacy, teacher collaboration, professional learning, behaviour policies and research engagement.