Firstly, the idea that a parent should have control over
homework in any capacity seems like a misguided idea
Full disclosure I'm a parent so biased. However with that said I know more about my child's workload than the teacher. The teacher knows how much homework they assign for "their" class. They don't know what the other classes assign. What extra curricular activities require or what chores the child has at home. Asking a Teacher to figure out the appropriate level of homework for a child is asking someone with inadequate information to make a decision on priorities. The person best suited to make an informed decision here is the parent.EDIT: unbiased to biased.