Kids listen when they know that you are on their side, helping them get what they want. I don't mean help them become spoiled, I mean help them get their emotional needs filled. So... when they are screaming try 'encapsulating' what they want. When they feel like you understand them, suddenly they will stop and listen. I have 5 kids - they are grown now and as an executive coach, I work with many leaders on parenting issues. I'd be happy to help you with a call (no charge!)