Steph King is a mathematics education adviser and established author with over 25 years' experience in primary education, including senior leadership, subject leadership and ten years as a mathematics adviser for a local authority, before working independently. Steph is an NCETM Professional Development Accredited Lead and writes and presents CPD for schools. She has taken part in numerous national events for organisations including NACE, Rising Stars UK and UKLA. Steph is an author for publishers Rising Stars UK, Hodder Education, Harper Collins and Keen Kite. 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. Sarah-Anne Fernandes heads up her own consultancy company, SolveMaths Ltd, where she is highly effective at delivering mathematics consultancy support and training for schools to improve standards. In addition to in-house school support, Sarah-Anne is an established mathematics author and series editor who has worked on a range of titles for leading education publishers. Sarah-Anne has great belief that mathematics can be enjoyed and successfully learned by all!