Love & Logic: Change the wording of what you ask the kids to do and become more effective. This is true of working with adults as well.. It's all perspective. Change accusatory you statements, into action-packed I-statements and foster results
Which Type Are You? Love and Logic's Three Types of Parents -- I have always LOVED the "Love and Logic" approach and tried to use it at school, but I need a lot more practice at it. A LOT more practice.