Yes, weird with the teacher relationships. A kid from my class, strong on the hyperactive side, was really hated by some teachers. One threatened to beat him up in front of the whole class, another (of the super nice relaxed ones) just threw him out with a book to study on his own in the hallway. I suspect that he never did a single line of homework or studying at home, but his test grades were too good to let him fail.

I don't have hyperactivity. The best teacher I had really hated me, because he was all about punctuality, reliability, discipline - totally not my approach to math. His teaching was great, I didn't forget a single lecture to this day, and it allowed me to get all the math course certificates for a STEM field later, although I never finished the degree. A few STEM teaches though realised that my obsession with electronics and programming was really getting somewhere and tried to motivate me to put in the time in related fields, but I never put any work in, and only for computer science was that enough to still ace it.

My own son is even stronger in the extremes. He is barely old enough for his grade, but already has to take math in the grade above. Can't skip, because his reading & writing is just on par (although in two languages). But he is extremely disruptive. His teachers seem like they understand that he puts in the same mental effort to focus and sit still, just with worse results than the average. And they support my suspicion that he has ADHD and should get tested. Well, will probably take 4 - 6 months to get an appointment, and another 4 - 6 months until there is a diagnosis.