More and more young children are diagnosed with ADHD. Via the Boston Globe [free registration req'd] is this list of actions you can take to help your child.

• Look for a very structured preschool or day care. All preschool-age children do better with consistent routines, but that is critical for youngsters with ADHD.
• Provide a choice of activities throughout the day.
• Use timers and transitional warnings when it’s almost time to switch activities.
• Use role-playing and other practice sessions to teach the child social skills.
• It’s easy to ignore good behavior. Don’t. Praise it.
• Try token systems where good behavior earns rewards, and misbehavior costs tokens.