/kloc-in the second half of the 0/9th century, a theme of the development of secondary education in Britain was the reform of public schools. In order to carry out the reform of public schools in a more targeted way, the Clarington Committee accepted the entrustment of Congress and conducted an investigation on nine public schools in1861-1864. 1864, the Committee published an investigation report and put forward improvement measures for the disadvantages of public schools. After the reform, the curriculum content of public schools has expanded and the management institutions have changed.

1864- 1868, Downton School Committee conducted a survey of more than 900 donated grammar schools in Britain, and in the survey report submitted in 1868, it proposed the establishment of three types of middle schools: the first type of middle schools implemented classical education, which was set up for the children of aristocrats and big bourgeoisie to carry out pre-university education; The second kind of middle schools mainly offer courses such as modern language, mathematics and natural science, which are for middle-class children. The purpose of education is to train professionals in business, medicine, law and other industries. The third kind of middle school is specially set up for the children of middle and lower class civilians, and the purpose of education is to train general professionals. At that time, the British government focused on popularizing primary education, so the Downton School Committee's suggestion was not adopted.

After entering the 20th century, the connection between secondary schools and primary schools, providing more people with opportunities to receive secondary education, has become the main problem to be solved in the development of secondary education in Britain. Regarding the connection between primary schools and secondary schools, Hado's report called "the education of children after 1 1 year old" as secondary education, and suggested that secondary schools be divided into four categories: grammar schools, two types of modern secondary schools (including modern secondary schools established on the basis of selective central primary schools and modern secondary schools established on the basis of non-selective central primary schools) and advanced classes attached to public primary schools. 1938, Spencer report proposed to add "technical middle schools" on this basis. Although these suggestions were not realized at that time, the idea of setting up various types of middle schools was actually recognized by the Butler Education Law of 1944. In this way, before the Second World War, Britain formed the development situation of public middle schools (grammar middle schools, technical middle schools and modern middle schools) and public schools. The emergence of various types of middle schools makes it possible for more people to receive different forms of secondary education. 1938 About 64% of school-age children entered secondary schools.