The UK’s leading expert on the mastery approach, Mark is a leading figure in mathematics
education, and has led many large-scale government education initiatives, both in the
UK and overseas. Mark was a Director at the National Centre for Excellence in the
Teaching of Mathematics (NCETM) and has also been a school leader, an Advanced Skills
Teacher, a school inspector and a teacher trainer. He founded and was Chairman of the Teacher
Development Trust. He has extensive experience of mathematics teaching and learning across all age
and ability groups, having taught students from age 3 to PhD!