Red, yellow and blue kindergarten classes are divided into pink classes, red classes, yellow classes and blue classes according to age, and the corresponding age groups of each class are 2.5 -3 years old, 3-4 years old, 4-5 years old and 5-6 years old respectively; There are also international classes, art classes and rainbow classes, all of which are mixed-age classes. The mixed age range includes 2.5-4 years old and 4-6 years old. Parents can choose suitable classes for their babies according to their age characteristics and hobbies.