Usually, the ADD child thrives in a busy environment. Never discipline ADD behavior, but offer them ways of coping with their impulsive urges. This is when the child willfully disobeys rules and limits. Never punish by withholding sports or other school-related activities. A better punishment option is the restriction of TV viewing or computer time.
Extra chores is another good discipline tool.
A simple thing such as a highlighter can make a world of difference in a child's success in the classroom. Something as nondescript as a touch on the arm from a teacher can be the motivation for an inattentive student to stay on task. Try new things. Never get so complacent that you think you know it all. I feel that there should be many of these proven innovations put to use.