Our guest today is Dylan Wiliam – Emeritus Professor of Educational Assessment at University College London. He’s a former school teacher, over the last 15 years his academic career has been focused on the use of assessment to support learning, and he now works with teachers all over the world on developing formative assessment practice. We caught up with him in Melbourne to talk about effective questioning in the classroom. Over the next 20 minutes, he’ll be explaining what’s wrong with the traditional teacher approach of ‘I’ll ask a question and you put your hands up to answer’, sharing a classroom display technique called ‘the parking lot’, and describing how to plan your lesson around checkpoints that he calls ‘hinge questions’.