Usually when it comes to children, the only to deal with them is to understand their thoughts. Cause for any persons in the world, thinking becomes action. Therefore, to stop them behaving wild is to understand the reason behinds their wrong doings.
Scolding is not an option. You can scold your children or get anger. But, how far is this method going to last. Therefore, undertanding your children's behaviour is a better option. They may be children to you as you might think they are still too young to understand your words, but, nowadays, children are much intelligent as adults.
Learn to talk to them and understand their behaviours. I hope this help you. In the long run anyway.
Stay cheers,
lostfound.