The fourth grade mathematics textbook of Luoyang primary school is published by People's Education Press, which is the version of People's Education Edition. People's Education Publishing House is a large educational publishing institution directly under the Ministry of Education of China, which is responsible for compiling and publishing teaching materials. In the process of compiling, People's Education Publishing House has carried out extensive cooperation and trial use with local teaching and research departments and schools to ensure the quality and applicability of teaching materials.