Trevor Dixon has over 30 years' teaching experience in primary schools, and he has led mathematics in three schools. Additionally, he was Lead Teacher for Gifted and Talented Education, worked as an Advanced Skills Teacher and wrote materials for Gateshead LA. Trevor is a writer of teaching and assessment materials for different publishers, exam boards and online providers of mathematical education. He has been involved in writing and developing questions for KS1 and KS2 Mathematics SATs and trialling these questions in schools and he has also written for the Australian Curriculum, Reporting and Assessment Authority. He has a wide range of marking and coding experience and works developing short teaching videos.