theres different types of dancing. Theres classical, this is where you perform in shows, do shows et cetera. Theres modern, this is where the classical art form takes a more modern approach, you can compare it to modern art. Theres competitive, this is where many people dance in a competition, theres many divisions and categories and you usually get scored out of 300, the person/group with the highest score wins and in the more competitive world moves onto nationals
Pretty cool