Nanny Needed - Full-time / Part-time

We are looking for a great babysitter for 1 child in Roanoke. We would prefer someone who could help out with homework. We would prefer a babysitter who has their own car and who does not smoke. Someone with good morals and doesnt have any other kids. Like a college student. Someone who can do some kind of sports with him too. No electronics at all. He can watch tv but with supervision. Someone smarter than a 14-year-old and their antics!!