0 to 6 years old. In China, preschool education is the education, organization and influence of children from fetus to primary school. Its education targets include fetuses, infants (0-3 years old) and infants (3-6 years old). Preschool education is an education that parents and kindergarten teachers use various methods and objects to stimulate children's brains systematically, systematically and scientifically, so as to gradually improve the functions of all parts of the brain.