**Discussion** **TES interview **(June 2013) **Podcast 9**Join **Craig Barton**, adviser for secondary maths at the *Times Educational Supplement*, for the ninth episode of the *TES* Maths Podcast – your monthly dose of mathematical debate, ideas and resources. This episode Craig Barton is joined in the studio by **Andrew Blair**, an experienced Head of Department and the man behind the incredibly exciting website Inquiry Maths. On this episode we talked about running a successful inquiry-based lesson, and the changing role of the Head of Department (including sound advice for anyone thinking of taking up the role).