Mathmatics according to the inquiry of Shenzhen Blue Sky Education official website, Blue Sky Education is an extracurricular tutoring and training institution in Shenzhen, which mainly deals with Chinese, mathematics, English, science, summer camps for studying abroad and one-on-one tutoring. Mathematics is the best tutoring education, tutors are all graduate students, and other subjects are undergraduate graduates, with rich educational resources. Therefore, Shenzhen Blue Sky Education teaches mathematics best.