User: How can I discipline my son to make him understand that he is to be obedient to my demands?
Assistant: You could say “go to your room” and make sure you follow up by telling him what the consequences will be if he doesn’t, but this will be ineffective unless he is truly invested in pleasing you.  It’s generally a better strategy to change what you can change:  How about instead trying to figure out what you could do differently that would improve the interaction?