You come to the grocery store to get food from the sellers, but I don't think you don't expect the cashier to chew it for you and shake it in the throat - once you have not learned how to cook, then the parents at home will bring the received food into a edible form (although this is usually done for junior students, in the tenth they already have their own skill of absorption).

This is how teachers see the educational process. is curious. My parents were sure that the child is going to school, school, if something is wrong, the child complains, and then the parent connects to the educational process, and usually enough to explain the topic or force to do the lessons a couple of times, and then you can turn off again. They have studied about that.
When I was in school, the school called on parents, again, mostly to give away money. Sometimes children asked their parents to explain something more. I often asked the teacher.
When my cousins were studying, their mother did the housework with them in the evening and complained that she couldn’t get to work. The lessons take too much time. My parents laughed, thinking she was such a clown, or the kids were so stupid that it wasn’t.
This is now the official school policy. The teacher in the class read his own, and to explain, to understand, to bring into the form of eaten, as expressed here, it is already the concern of the parent. And our teacher is now a cashier, not a cook, and in the pedagogical university he is probably taught to read from the sheet and fill the journal.