Most student estimate how many times a week they will go in a month, and buy the appropriate amount. Usually, the more classes you buy at a time, the less it cost per class. Because Jazzercise classes are independently owned by individual instructors, there is no set rate. Many instructors offer a special rate for new students on their first purchase. Any loose, comfortable clothes are fine.
Most people wear a leotard and tights, or shorts and a T-shirt.
Bring along a towel or exercise mat for the floor work. Good, rubber-soled aerobic shoes are recommended. Registration is ongoing on a drop-in basis. Everybody starts out that way, but most people find that the steps are fairly simple and can be picked up after just a few classes. It takes time to build up some endurance, but Jazzercise is geared towards all fitness levels.