The reason why Wanzai Middle School cancelled the experimental class was that the Ministry of Education issued a notice that experimental classes were not allowed. According to official website of Wanzai Middle School, the reason why experimental classes in junior middle schools in Wanzai Middle School were cancelled was because the Ministry of Education issued a notice that experimental classes were not allowed. In the compulsory education stage, junior high school is not allowed to divide the experimental class into ordinary classes, so as not to cause stratification.