Explaining to them and making them understand that what you are saying and doing is for their benefit and best interest in life and the intention is not to to mean or harsh to them, the lesson is in preparation for life for them and keeping them safe.....the best to you
Getting them in a routine. Often the families had no idea of how to bring up a child and the child was "hyper". The same child after three weeks living with me turned into absolute angels. I feel it is very important that when you say no you mean no and when you promise to do something you carry out your promise.
Kids will be hyper and run around. The two most problems you'll have is obedience and your temper level