There is a word for this: “Afterschooling”! And...I bet the school was more than happy to take full credit for your hard work and that of your son.
The **only** academically successful children I have ever met were either homeschooled or **afterschooled**. In fact, when I quizzed these kids and their parents I found that there was NO DIFFERENCE in the home habits and **at the kitchen table** time spent by either the home or institutionally schooled children.
So?...If both the acacdemically successful homeschoolers and institutionalized children are spend the SAME AMOUNT OF TIME **IN THE HOME** doing school stuff, then maybe we are spending $17,000/per child on a government program that is completely doing NOTHING! Maybe all that academic success is entirely due to the work done IN THE HOME by the child and parents.
I think you are 100% correct.