People's education publishing house
People's Education Edition is published by People's Education Publishing House. The content of each chapter of the textbook is from shallow to deep, step by step, with a strong sense of hierarchy, focusing on essence and simplicity. The exercises and examples after class are more difficult.
Beijing Normal University Edition
Beijing Normal University Edition is a textbook published by Beijing Normal University Press. The content of each chapter generally guides students to start from life problems and gradually transition to textbook content. The difficulty spirals, but the examples and exercises after class are relatively simple.