Kindergartens (kindergartens, nurseries) are pre-school educational institutions focusing on the care and education of children, and usually accept children aged three to six. Kindergartens can relieve the bondage of time, space and environment when families are cultivating children, so that children can develop physically and mentally healthily. Kindergarten education is the preparatory education for children and the foundation of the whole education system. It consists of basic education courses (language, science, art, health and society) and various activities.