principle gave me this info. includes 'special time' where you spend 15 minutes just 'commenting' on childs play not directing or criticizing play. 'compliance training' where you give simple instructions and use praise when they do it right. 'contingency contracting' you use a chart of wanted behaviors and reinforcers. so have any of you tried any of these and how did they work. according to this paper they have a high success rate when done properly.