Three levels. According to the network of Song Qing Training School, there are three classes from high score to low score, class A, class B and class C. Songqing Training School is an extracurricular tutoring school for primary and middle school students in Xinxiang City. Song Qing Training School is named Song Qing Training School because of its principal, which is characterized by Olympic Mathematics training and has a certain popularity in Xinxiang City.