Modern physiological and psychological research shows that children's brains develop rapidly. The weight of a child's brain is only over 300 grams at birth, reaching 660 grams at 9 months, increasing to 900- 1000 grams at the age of two and a half to three, and reaching 1200 grams at the age of six or seven, which has reached 90% of the weight of an adult's brain. From the physiological function of the brain, when children are 2 or 3 years old, various reflex functions of the brain have developed; At the age of 6 or 7, almost all nerve conduction pathways in the cerebral hemisphere have myelin sheath. This provides material conditions for children's intellectual development, and on this basis, early education can promote children's intellectual development. The weight of the human brain is directly proportional to the development of intelligence, but the development of human intelligence is decreasing, that is, the younger a person is, the higher his intelligence development is.

Bloom, a famous American psychologist, believes that if 17 is the mature age of intelligence (that is, the highest point of intellectual development, that is, 100%), then 50% of intellectual development is completed before the age of 4, 30% between the ages of 4 and 8, and the last 20% between the ages of 8 and 17. In other words, a person's intelligence will be half developed before the age of 4, and the rest will be completed within 4 to 17 13 years. These figures tell us that intellectual development is the fastest in the first four years after birth, and then gradually slows down with age.

The white paper on education issued by the British government points out that it is too late to educate children from the age of 4-5. If you don't strengthen education before the age of 3, you can't guarantee your child's healthy growth in the future.