Your Child's Bill of Rights
What you can do to mitigate the symptoms of hyperactivity and impulsivity in ADHD is to set out a plan that you, your family members, your child's teacher, and even his or hers friends' parents can follow. About 20 years ago, Ruth E. Harris of the Northwest Reading Clinic (with locations in Tigard, Oregon, and Vancouver, Washington) wrote An ADHD Child's Bill of Rights.
Help your child to focus. With all the activity and thought flow taking place, a touch on the arm does the trick to bring their attention back into focus. Ms. Harris states in her original bill that ADHD children respond well to tactile instructions.
Give advanced warning of changes. ADHD children process their daily routines better if they know what's coming. When the regular schedule is disrupted, kids with ADHD have more difficulty adjusting. If you plan on changing the usual stream of events, let them know ahead of time.
Don't rush the ADHD child. Yes, they seem as if they are always rushing---so resist the urge to initiate rushes of your own. When you ask questions, give your ADHD child more time to think through and formulate a response. Ask them to "take a minute to think about it", and then you can add, "Anything else?" If you don't give them this pause, you can expect confusion and dismay.
Offer alternative solutions. When your ADHD child is stuck on solving a problem, suggest a few ideas. Don't feel that your child isn't creative; just realize that they sometimes reach a mental impasse and need a little nudge.
Give feedback. All children need feedback--children stymied by the hyperactivity and impulsivity of ADHD need it more often. Be honest but kind; these children don't want a free pass, they truly want to do well. It's also helpful to decide on a signal between the two of you--a hand wave or a variation of the thumb's up--that will silently express your praise.
Repeat instructions when necessary. Sometimes people think that their ADHD kids are ignoring orders. The truth is that possibly they didn't hear what you said in the first place. If you don't see your child responding, touch their arm and repeat what you said. And smile!