In this audio recording Dr Lizana Oberholzer speaks to Professor Samantha Twiselton, the Director of Sheffield Institute of Education at Sheffield Hallam University and Vice President (External) of the Chartered College of Teaching. She uses her research and practice in the progression of teacher expertise, and curriculum design to improve school embedded approaches to teacher development. Sam has been involved in influencing Government policy on teacher education and is the Chair of the DfE ITT Framework Group, a member of the DfE Teacher Recruitment and Retention Advisory Group, the specialist NPQs Group, the Carter Review of ITT and Expert Behaviour Management Panel, and the OFSTED Curriculum Review Panel. She is a recent recipient of an OBE for services to Higher Education.