The American Association for Early Childhood Education (NAEYC) is the authoritative organization for early childhood education in the United States. In order to guide educators to implement correct early childhood education, they have formulated some guiding principles for early childhood education.

According to the definition of American Early Childhood Education Association, early education refers to the education of children aged 0-8. In some cases, early education refers to the education of children aged 0-3 or preschool children. The American Association for Early Childhood Education points out that children's early life experiences not only have an impact on their future study and life, but also have an impact on their life. For example, current research proves that early education has short-term or long-term effects on brain and cognitive development. From infancy to 10 years old, brain cells not only form connections, but also have the greatest adaptability during this period, and can change the structure of the brain through active brain stimulation. At the same time, in early life, it seems that the positive parenting process for children is very important not only for cognitive development, but also for healthy emotional development and social ability. In addition, the period before entering school is the best time to develop basic motor skills, language skills and other lifelong benefit skills.