Damn, son! When I took Calculus in 12th Grade, it seemed to be one big stumble of C’s and D’s, until I spent winter break doing lots of extra problems on my own. Then I got the hang of it.
For your son to do something like that in 8th Grade screams, “Put this guy in charge of . . . well . . . EVERYTHING!” Congratulations!
Thing is now, there are a lot of great resources on Youtube that explain algebra better than most teachers. And it’s free!
If I were a student today, I would just watch Youtube videos to get ahead of the course, and I’d probably only have to study for a fraction of the time.
It’s a matter of having the desire to learn.