I failed at this with ds1 and now I am failing with ds2, and we're only 2 weeks into starting school.
Kids start school at 6 here (it's nursery and play before that), but as soon as they DO start it's quite serious and the children are supposed to be able to sit and do worksheets at home. The homework is not extra or optional - it's an integral part of the learning as they don't really do any practice in school time (8.30 - 12.30).
But it's just not happening.
He sits but then wiggles about, drops things, starts and then stops in the middle of a letter or counting, gets distracted by anything and everything.....says he can't do it; he can, it's absolutely age-appropriate work and not too much of it but obviously if you spend 5 minutes tracing the letter A and there's a whole row of them to do then you are going to get bored and fed up.
I encourage, I sit with him, I move away and come back to check, I offer small incentives to finish or move on....I am out of ideas. In the end I find myself shouting JUST GET ON WITH IT because we are sitting for 20 minutes and he's not finished a single row of letters (there are eg 6 giant letter "A"s on a row and he's supposed to just trace over them).
I had exactly the same problems with DS1 - work which was easy and should have taken minutes would take ages and ages, and we never found a solution.
Any help or advice - especially if you also have experience of non-UK schooling - would be really appreciated.