When my dc has homework, I sit down with them and explain what they have to do. I then help them work out the correct answer to complete their homework. So when it comes back marked by the teacher they always get good comments on how well they have done and understood what was required of them.
When your dc have homework do you do the same? Or do you sometimes let them put down what answer they think is correct?
I am worried that the teacher is not getting a true idea of how I really struggle sometimes with dc on their homework!!