I have recently explained to Aniruddha in Dallas school and you may write to him for details. The most important thing however is to see that somehow or other the children are always engaged in some kind of Krsna conscious activity, then they will naturally develop a taste for it and think it great fun even to work very hard for Krsna's pleasure.
So in this way you as mother and father must take responsibility to deliver these nice children and that will be a very great service for Krsna.
Hoping this meets you in good health and happy mood,