A good tip from research on ADHD

In order for a child to have good self-control (i.e., behavior), the timing system in the brain must be operating normally. Faulty timing is at the heart of ADHD. Researchers in Australia recently developed a set of questions for parents of children with ADHD that will help doctors and therapists better pinpoint whether there is a problem with timing skills and whether or not they are getting better with treatment. This is a valuable tool for professionals who use Interactive Metronome in the treatment of ADHD to measure and document the effect of the treatment, which improves timing in the brain.

Houghton, S., Durkin, K., Ang, R.P., Taylor, M.F., and Brandtman, M. (2011). Measuring Temporal Self-Regulation in Children With and Without Attention Deficit Hyperactivity Disorder: Sense of Time in Everyday Contexts. European Journal of Psychological Assessment, 27(2), 88-94.