Craig Barton has been an educator since 2004 over the past two decades has become a maths leader, author, and entrepreneur. He is the co-creator of Diagnostic Questions, a free website hosting the world’s largest collection of high-quality maths resources, and the Head of Education at Eedi. He launched Mr. Barton Maths Podcast in 2015, allowing him to talk to experts in education research. Since then, he has published two educational books with JohnCatt Educational: How I Wish I’d Taught Maths (2018) and Reflect, Expect, Check, Explain (2020).