Malcolm , it’s definitely how you are taught Maths. My neighbour was a Maths teacher in a local Comprehensive for 25 years. Her daughters both have good science degrees. One is an Actuary the other a Nuclear Engineer. She resigned after 25 years as she got fed up trying to teach students who were not interested. Then she worked from home as a private Maths tutor. She always had a waiting list of parents willing to pay for Maths tuition. I have to add quite a few were Chinese and Asian students already at fee paying schools.