1, all senior high school textbooks in Beijing use the People's Education Edition. Haidian District uses Beijing Normal University Edition. In mathematics, Beijing Normal University Edition is more difficult than People's Education Edition. There is little difference in the difficulty and knowledge points of other subjects. There are also foreign language textbooks in some districts that use the Foreign Studies Edition, which is similar in difficulty to the People's Education Edition.
2. Shandong high school textbooks. Chinese textbooks in many areas are selected from Shandong Education Publishing House. Foreign language textbooks are selected from the People's Education Edition or the Foreign Language Edition. Mathematics is PEP version B, which is as difficult as Beijing Normal University version.