Sending a child to a state school, but paying for tutors is a private education through the backdoor (Getty/iStock) Kumon, a daily maths worksheet plus a weekly in-person session, cost about £40 a ...

It started with Kumon. When my then eight-year-old son – a June baby, at the younger end of his state primary year group – was struggling to retain his times tables, and falling behind in maths, it ...