Sam Denno of Obsessed with Assessment caught up with Dr Mick Walker to conduct a fascinating conversation on numerous aspects of educational assessment. In the first of a collection of episodes, we explore Mick's experiences of working at the cutting edge of curriculum and assessment design via his roles with the National Curriculum Council and the QCA. Mick's insights are invaluable as a window into the England education system at the highest levels and as pedagogical guidance for teachers and school leaders.