(ii) The kindergarten should have a clear functional partition, a reasonable layout, and a building form and style that seeks to reflect the characteristics of young children.
(c) The scale of the kindergarten should be 6-12 classes, generally not more than 15 classes. The number of children in each class is generally: 25 in the small class; 30 in the middle class; 35 in the large class.
Other relevant instructions case private kindergartens refer to the implementation of this standard, I hope my answer can help you!