合作教学是一种教学策略体系，在许多课型加新授课、实验课、复习课，特别是新授课上已得到广泛应用，并取得很大成效。讲评课也是常见的基本课型，通过对某一套节习题、课外作业、单元检测、期中或期末测验等的讲评，既能发现、解决教学疑难、改进教学，又可提供反馈信息，促 Cooperative teaching is a kind of teaching strategy system. It has been widely used in many classes, plus new classes, experimental classes, review classes, especially new classes, and has achieved great results. Lecture class is also a common basic class. By commenting on a certain set of exercises, extracurricular activities, unit tests, midterms, or final tests, you can find and solve difficult teaching problems, improve teaching, and provide feedback.