It's easier to talk about what went wrong after recalling positive events. Be an active listener. Pay careful attention to what your child is saying. Try to listen between the lines, and ask specific follow-up questions about the things he finds difficult to say. Talk with children, not to them.
Children tune out lectures.
Try to have a genuine dialogue with them, not a monologue. They often love to hear what happened to you in school when you were their age. Make home an extension of school. If your child comes home eager to talk about his new friend, or to show you how to build a new kind of LEGO tower, encourage him. Be involved with all aspects of school.