Graduates from Li Donghua Primary School in Qinhuangdao can go directly to No.13 Middle School. This counterpart relationship is generally divided by the education department or the government according to the distribution of schools and educational resources. The establishment of counterpart relationship can ensure the balance of educational resources between schools, improve the quality of education and facilitate parents and students to choose schools. In Qinhuangdao City, Li Donghua Primary School and No.13 Middle School are public schools, and the establishment of counterpart relationship can ensure students' equal educational opportunities.