My DS in Y3 is really struggling with Maths this year. I think that the problem stems from the fact that he has never properly got to grips with times tables. He knows 2's and understands doubling but loses it after that. He can have a guess at them but mostly gets them wrong and he still doesn't get the theory I think. The class has now moved on to division and he's lost. Any advice for going right back to basics and helping him to get his head around it please?