coach behavior

[dacollegegirl]

I am a mother who is new to the ball game, so forgive me if I am not to smart about things. My kids are in 5th grade and 4th grade basketball. My questions are: Is it common for coachs to hit the walls and such at ball games when they are upset with players so young and inexperienced? Is this improper behavior, as I suspect? And, what if he is not willing to change his behavior, and superintendent has no problem with his behavior?