Reddit mentions of What Your Third Grader Needs to Know (Revised Edition): Fundamentals of a Good Third-Grade Education (The Core Knowledge Series)

I would also use your resources. Idk if your kid may be ADHD or just a normal little boy, but feel free to talk to your pediatric physician and see what he thinks or maybe do the testing stuff for adhd. I know there is a lot of overdiagnosis of adhd among young boys who are just growing up.



Also, he may be frustrated in school with the slow pace, which might be why he is acting out. I know accelerationlskipping a grade isn't always a solution, but if he is significantly above grade level, it might be the answer for him. IRRESPECTIVE of if you advance him a grade or not, you need to push his brain and expose him to more stuff than a "normal" kid. Doing fun at home science projects, going to the library, reading, doing "singapore math", reading this book together(https://www.amazon.com/What-Third-Grader-Needs-Revised/dp/0385336268), reading things like the hobbit for his bedtime stories.

Gifted kids should/deserve to be intellectually stimulated just like more average kids, but you have to put a little more effort in.

Also, idk about your district, but getting a full battery IQ test is useful for a few reasons. It may provide sort of evidence justifying his advancement a grade level, and it also might be helpful to you as a parent to see how smart he is roughly.

If he has an IQ of 130 vs 145 or 160, those things can all mean big differences on how much attention and how much acceleration would be appropriate. Also, a psychologist/your family physician will be helpful as well, but hoagies is great too, and has a lot more parents than reddit.