The most important goal is to have the child learn the work, not to learn how to copy off a blackboard. When the children come into class, I suggest teachers allow time for them to organize their notebooks, pencils, and papers. Base this time allowed on the child who takes the longest. Homework Teachers generally send home whatever did not get done in class. They really shouldn't have more than an hour or two each night.
Every child needs a break after school.
Some may prefer to get the homework done first, but for young children especially, it's better for them to have some physical activity, to be able to play, and then do the homework after dinner or later in the evening. The parent is only expected to get the child to do what he is capable of doing during that time. Allow the child to work in the environment that best suits him. For one youngster, this may be a quiet place in his bedroom. For another it could be at the kitchen table.