Have the urge to head back to school? It may be just what you need to jump up a level in your local or national fleet. No matter what you sail, there's a school that can help you out. J WorldNewport, R.I., Annapolis, Md., Key West, Fla., San DiegoJ World offers a diverse menu of racing courses at four locations across the country¿from three-day seminars to weeklong racing instruction during regattas. 800-343-2255.http://www.jworldschool.comKolius Sailing SchoolsLa Porte, TexasThe Kolius school is designed for dinghy sailors. The school runs five-day courses in Lasers or Vanguard 15s in the spring. 800-276-SAIL.http://www.kolius-sailing.comOlympic Circle Sailing CenterBerkeley, Calif.Sailing on notoriously windy San Francisco Bay, OCSC offers four performance sailing courses. The courses are held year-round on weekends. 800-223-2984.http://www.ocscsailing.com North U./Offshore Sailing School Performance Race WeeksCaptiva Island, Fla.In 2002, the Fast Track and Performance Race Weeks will be combined into one program. Three separate one-week sessions will be held in March and April. 888-454-5216.http://www.offshore-sailing.comPremier SailingIrvington, Va.This lower Chesapeake Bay school offers weekend race-training and "Supercrew" courses in J/24s. The former focuses on overall sailing technique. The latter teaches the specifics of crewing on a race boat. 804-435-5019.http://www.sailingschool.netRick White's Sailing SeminarsKey Largo, Fla.White runs 5-day seminars for beach cats and dinghies each April, and a Hobie Wave clinic in December, out of his hotel in Key Largo. White will also bring his seminar to your fleet. 305-451-3287.http://www.catsailor.com/isc.htmlOffshore Sailing School's Sailmaker's Caribbean ChallengeTortola, British Virgin IslandsYou and three friends spend a week racing a Moorings 413 around the B.V.I. under the watchful eye of top sailmakers. Students spend six nights afloat and two nights in hotel accommodations.