A married couple asked the Rebbe for a blessing that their children should behave properly. The reply seems simple, but since I have not seen it in any parenting book, I’m including it here. Sometimes the most obvious is also the most inconvenient—and therefore the most avoided:

Behave properly yourselves. When the children see your example, they will naturally want to do the same as their parents.

Then it is only a matter of talking with them, step by step, day after day, and eventually it will help.