LIZ ATKINSON teaches maths to Year 5 children and coaches young people of all ages who struggle with maths. Her mother-in-law SUE ATKINSON has taught for many years, and been a deputy head and a lecturer in education, at Westminster College, Oxford, and then at the Institute of Education, London. She now works as a maths consultant and spends most of her time writing and lecturing around the country. TIM SCOTT is a qualified pilot and teacher, and once was President of the Cambridge Footlights. He is now a comedy writer, for Radio 4 and others.