Preschool education

Preschool education is the provision of education for children before the commencement of statutory education, usually between the ages of two and five, dependent on the jurisdiction. Preschool is also known as nursery school, day care or kindergarten (other than in the USA, where kindergarten is part of the statutory education system, preceding first grade).

Reference:
http://en.wikipedia.org/wiki/Preschool_education