Collectively, Evans, Gordon, Speed and Senior have over 100 years of teaching experience, both in the classroom and leading maths departments.

Chris has an MA in Maths and over 30 years' teaching experience at secondary level, including a local advisory role. He is the author of our endorsed edition of Cambridge IGCSE Maths Student Book and has written and co-authored numerous Collins maths publications at this level. He also has written for Cambridge Checkpoint.