There are new classes, review classes, practice classes, lectures and evaluation classes, testing classes and activity practice classes in primary schools.

New teaching: teaching new mathematical examples, definitions, laws and principles. Review class: systematically review what you have learned, find out the internal relations and supplement the missing knowledge. Practice class: consolidate what you have learned and be familiar with calculation procedures and skills. Lecture and evaluation: classify the types of mistakes in homework, introduce and learn the best solutions to some problems in homework or test papers. Test class: provide questions to test students. Activity practice class: deepen the understanding of knowledge points through classroom practice.