Education is designed to support early development in preparation for participation in school and society. The programs are designed for children below the age of 3. This is ISCED level 01. Preschools provide education from ages approximately three to seven, depending on the country when children enter primary education. The children now readily interact with their peers and the educator. These are also known as nursery schools and as kindergarten, except in the US, where the term kindergarten refers to the earliest levels of primary education. Kindergarten "provides a child-centered, preschool curriculum for three- to seven-year-old children that aim[s] at unfolding the child's physical, intellectual, and moral nature with a balanced emphasis on each of them."This is ISCED level 02.
In most contemporary educational systems of the world, secondary education comprises the formal education that occurs during adolescence. In the United States, Canada, and Australia, primary and secondary education together are sometimes referred to as K-12 education, and in New Zealand Year 1–13 is used. The purpose of secondary education can be to give common knowledge, to prepare for higher education, or to train directly in a profession.
The central role of an after-school program aide is to support the teacher's agenda, which requires listening closely to instructions and following them in accordance with school policies. Aides often help teachers with the lesson and activity plans, such as taking small children to observe seasonal changes and plant life.