First, the United States: emphasizes that educational content should meet the requirements of the times.

American educators attach great importance to preschool education, especially to the study of the relationship between young and old. Kindergartens in the United States are basically attached to primary schools, accepting children aged 4-6 as the ladder of primary schools and preparing children aged 5 for one year's education.

Pay attention to the requirements of the times in educational content, and educate children in mathematics and natural science. In order to better connect, kindergarten teachers and primary school teachers should understand each other's educational tasks and characteristics.

Second, Switzerland: the combination of early childhood education and lower primary education.

Switzerland has invested heavily in children's intelligence since childhood, stimulating and inducing children's interest in learning, and striving to develop children's potential.

At the same time, Switzerland does not advocate being too eager to urge or even force children to learn knowledge, which makes them feel stressed and depressed. Because regardless of the process of children's intellectual development and individual differences, wishful thinking of cramming education children will inevitably cause serious sequelae.

Third, Germany: pay attention to psychological preparation and self-care ability preparation.

In Germany, every child will be welcomed by the school and valued by the whole family before entering primary school life. German children can't go to primary school until they are six.

The so-called admission means that teachers and doctors must assess that children are "ready" in psychological age, body, language and other aspects before entering school, while children who are not "ready" can delay entering school for one year.

Parents can decide for themselves that their children will go to primary school at the age of six or seven, or they can decide after discussing and evaluating with teachers. Interest and major are the key points of cultivating children in Germany, instead of asking every child to study well or thinking that reading good books will have a future.