According to the relevant public information, Article 6 of the document "Standards for the Establishment of Preschool Education Institutions in Dong Qi" stipulates that the kindergarten scale is 6 to 12 classes, and the number of children in each class is no more than 25 in the small class, 30 in the middle class and 35 in the large class.
Big class, big class refers to the highest class in kindergarten.