1. In a broad sense, all purposeful activities that can affect children's physical growth and cognitive, emotional and personality development, such as children watching TV, doing housework and participating in social activities under the guidance of adults, can be said to be early childhood education.

2. Preschool education in a narrow sense refers to the education of kindergartens and other specialized preschool education institutions. Kindergarten education belongs to the school education system in China. Like school education, kindergarten education also has advantages that family education and social education do not have, such as planning and systematization.

3. Preschool education mainly refers to the education of children aged 3-6. Preschool education is the second half of preschool education or early education, with 0-3-year-old infant education in front and primary education behind. This is an important and special stage of one's education and development.

4. "Importance" means that it is the foundation of a person's development, and many important abilities and personality qualities form basic characteristics during this period; "Special" means that this stage is the transition period of children's physical and mental development from the initial amorphous to the basic stereotypes, and then they can start learning and developing according to social needs.