"Educational Facilities, Nursery or Preschool" means a school that is primarily educational in nature oriented toward the needs of a child of three to five years of age. This definition also includes any day care center which receives children between the ages of two and six years and which is established and professionally operated primarily for educational purposes to meet the developmental needs of the children served. Preschools are facilities that provide day care with or without educational services for children not yet attending elementary school.