Our school is Fairmount elementary (K-5). We have about 1200 students and go year-round in St. Peters, Missouri (just west of St. Louis). www.norcom2000.com/fairmount/pto/pto.htm
Unfortunately, my wife was diagnosed with cancer just after Thanksgiving and I haven't had the time to keep it up-to-date, but I think you'll get the idea of what can be done without a formal class or training.