You want me to let my child run the show?
No, you don't have to let him run completely wild and free. But you can give him a few options that give him the illusion that he's in control. For instance, let him choose the order in which he studies and does homework. If he wants to do math first, let him. Let him choose if he wants a snack before or after homework.
If he feels like he has a little power, he's more likely to want to participate.