Maybe someone can advise me here but what are you supposed to do with kids that start reading and doing math early?

My three year old is reading and doing all the math I can throw at him and I was a dumb kid growing up so I have no idea what I'm supposed to do (ie private school, tutoring, testing, music lessons, educational psychologists, just chilling out and hiking with him etc)

Anyway loved reading about this guys method but was hoping for more guidance. If anyone has any thoughts or advice Im super curious / feeling lost.