I feel that after going to kindergarten at the age of three, I have the concept of attending classes, and then I will sign up for classes according to my baby's interests. At present, the child is three and a half years old and has not reported to any class. He is still very clever. Simple addition and subtraction can be learned through teaching. Parents are more important. English and so on. , mainly depends on the surrounding language environment. Specialized teaching is not very effective either.