Official website showed that whoever inquired about the original documents learned that the mathematics of Beijing No.11 Experimental Middle School of the Middle School Alliance was the People's Education Edition, which was the name of the textbook version compiled and published by the Institute of Curriculum Textbooks of People's Education Publishing House. The textbook of People's Education Edition covers the content from primary school to high school, and most schools are using it.

People's education edition is in terms of the significance of teaching materials, which is relative to the teaching materials published by other publishing houses. For example, the textbook published by Changchun Publishing House is called Changchun Edition, the textbook published by Guangdong Education Publishing House is called Guangdong Education Edition, and the textbook published by Shanghai Education Publishing House is called Shanghai Education Edition.