I just watched the dual-track system today. My information explains the dual-track system in this way: students enter two different school systems according to their class and social status. The first track serves the children of the ruling class and privileged class. They can enter public schools with grammar or academic courses through certain pre-school and primary education, and have the opportunity to enter universities or higher education institutions. The other track is a school for the children of middle and lower class civilians. This educational system aims to cultivate workers who are suitable for economic production and belong to the productive track.