Master Yu's Earthbending Academy

Master Yu's Earthbending Academy was an earthbending school located in Gaoling and administered by Master Yu.

History
It is unknown when Yu opened his academy, though it is known that it is fairly new. To attract students, the academy's reputation was made known through the distribution of flyers by a local resident. Yu gave Toph Beifong private earthbending lessons. In the Spring of 100 ASC, Avatar Aang visited the academy to see if Master Yu was the teacher Aang had been looking for. After being hit by multiple rocks and witnessing Yu display his greedy, money hungry nature, Aang decided that the earthbending academy was not the suitable place for him, and decided to look for a teacher elsewhere.

Description
Located in the bustling city of Gaoling, Master Yu's Earthbending Academy stands as the best known academy in the entire kingdom. The academy is mainly a roofless building made of stone, with an entrance posted in the building's front. The outdoor courtyard is the perfect place for earthbending training, as it allows children to be able to hurl rocks without hurting passersby or causing any destruction to surrounding areas.

Trivia

 * The Academy is in part a parody of real-world "strip mall dojos" which grant titles and belts without actual achievement or learning, as evidenced by Yu's offer to give Aang an unearned promotion to the next belt if he paid extra in advance.
 * Sifu Kisu, the martial arts expert for the show, is known for his disdain of such dojos and of the belt system in general.