1. Dual-track school system: This kind of school system is more common in aristocratic countries, mainly regulating the education between nobles and civilians. For example, Britain adopts a two-track school system, one is general education and the other is vocational education. General education is top-down, and its structure consists of universities (including other institutions of higher learning) and middle schools (including other preparatory classes for middle schools); Vocational education is bottom-up, and its structure is primary school (hereinafter referred to as primary school and junior high school) and vocational school. These two tracks are parallel and unconnected.
Second, the monorail school system: This school system is more common in emerging countries without aristocratic history. For example, the United States is a monorail school system. Monorail school system means that there is only one series of national education and the bottom-up structure is implemented. The structure consists of primary schools, middle schools and universities, and all levels of schools in the same series are connected up and down step by step.
3. Branch school system: This school system is common in socialist countries liberated after feudal history, such as China and Russian. The academic system of different subjects refers to the single-track system in primary or junior high school education, which is divided into vocational education and general education from junior high school or senior high school. This educational system is characterized by up and down, left and right, and mutual connection.