1. Growth and Development of Children Aged 0-2 At this age, babies’ brains are developing rapidly, and they begin to learn basic survival skills, such as eating, sleeping, and crawling. At this time, parents should pay enough attention and care to provide a safe and comfortable environment. At the same time, appropriate early education can promote the development of infants\’ cognitive, language and social abilities. 2. Cognitive and emotional development of children aged 3-6 years. At this age, children begin to enter the stage of self-awareness and are able to understand themselves.