(1) The "training builders and successors of the socialist cause with all-round development in morality, intelligence and physique" proposed by the national education policy clearly stipulates that the "builders and successors of the socialist cause" trained by schools should be improved in morality, intelligence, physique, beauty and labor.

(2) The "four qualities" of "comprehensively improving students' ideological and moral, cultural science, labor skills and physical and psychological qualities" put forward in the outline of China's educational reform and development should also be the content of comprehensively improving middle school students.

(3) The "four haves" of "socialist citizens with ideals, morality, education and discipline" proposed by Comrade Deng Xiaoping should also be improved in an all-round way.

(4) Comrade Li Lanqing pointed out that "for all students, let students learn to be human, learn to seek knowledge, learn to work, learn to live, learn to keep fit, learn to appreciate beauty, lay a good foundation, and make students develop in an all-round and coordinated way", which should be the content of all-round improvement.

(5) The teaching objectives of all subjects are naturally the content of students' all-round improvement.