When they learn a 'rule' effectively and learn to follow it, award them with praises and other small measures. This will encourage them to keep at it and over time it'll become a habit. Be Model ParentsChildren model their parents so make sure that you are portraying the same behavior which you are teaching them. That is one way of carrying forth truly effective child development. One of the quotes from the Holy Bible says "No discipline seems pleasant at the time, but painful. Later on, however, it produces a harvest of righteousness and peace for those who have been trained by it" Hebrews 12:11.