Is he involved in a sport and outside activities ,challenge him that way, get his Dad involved doing Physical Games and sports with him, if Dads not around is there another family member can help aswell , why does he act out, what triggers the behavior does he do well at school ,has he a sibling.Set bounderies and stick to them and use the time out method if it is required. Focus on his positive side and praise him when he does something right.The brighter the child the more attention he will seek, give it to him children thrive on positive attention.