Our 10 year old is working through his sister's old class 7 maths book, for fun
He found it on the shelf while we were sorting books for the new year, and he's been doing a chapter every couple of days since. Integers, simple equations. He gets most of it right and asks his sister when he doesn't, which she enjoys more than she admits. My instinct is to leave him alone. My worry is the ordinary one: in June he goes back to his own class's maths, bored, and the teacher sees a child who doesn't listen. Has anyone let a child run ahead like this? How did school go afterwards?