David is the author of two books, with a third, What If Everything You Know About Education Is Wrong? is out in June.
His award-winning blog, The Learning Spy, is one of the most popular and influential in the world.
He taught for 15 years in UK schools, leading two English departments and as an Assistant Principal. He is now a consultant and provocateur.
Tweet David @LearningSpy
Read more www.learningspy.co.uk