(1) The Education Ordinance (Cap 279) (EO) regulates the operation of schools and their teaching activities. According to Section 3 of the EO, a "school" means an institution, organisation or establishment which provides for 20 or more persons during any one day or eight or more persons at any one time, any nursery, kindergarten, primary, secondary or post-secondary education or any other educational course by any means, including correspondence delivered by hand or through the postal services.