2. Counseling in a certain stage or learning section.

3. Through a period of study, comprehensively examine students' understanding of what they have learned.

4. Comprehensive exercises and tests in some learning stages.

Tutorial books can make students know more about textbooks, and the fields involved often go beyond the contents of textbooks.

Extended data:

In 20 15, the mathematics copyright of "one lesson and one practice" was exported to Britain, which was the first case that domestic teaching AIDS took root in western countries, symbolizing that China's mathematics education idea, education method and education practice were recognized by western society and became one of the classic cases of China's education publishing going global.

The publication of "One Lesson and One Practice" in Britain is a reflection of the improvement of China's comprehensive national strength in the field of education in the past decades of reform and opening up, which has improved the status and popularity of China's basic education, especially mathematics education, and is also the participation and contribution of Chinese mathematics education represented by Shanghai mathematics education to the world. ?

Baidu encyclopedia-tutorial book

People's Daily Online-A mathematical mental arithmetic teaching aid "Three Moves to Pass the Customs" will be exported to China and Britain, and won favorable comments overseas.