I always find this kind of title weird. Coming from a relatively "homogenous" (for lack of a better word) ethnicity, I think I can see a point to generalize something like "this is how X people teach their children math", but "control anger"? This seems to me a very personalized thing that varies wildly from family to family.
Why? This is the "hard skills are real, soft skills aren't" dynamic I see so often (Hello, I'm the PM in a room full of Engineers). Your first mistake is that teaching itself is very personalized and varies wildly from family to family. If we're willing to accept the premise that there are some commonalities among families from the same culture, then how they teach social skills important to that culture would likely…
My exact point is this: I can't think of any commonalities for "(teach the kids) how to control anger", not for my culture at least. Maybe Inuit people are different.