讲评课是数学教学的一种重要课型,它对学生的知识起着巩固、充实、完善、深化和矫正的作用;又是对知识进行梳理、整合、再运用的过程;也是师生共同进一步探讨解题方法、提炼数学思想、探寻总结解题规律、提高分析问题与解决问题能力、优化思维品质的重要举措.笔者在教研活动中进行了一次既有趣、又有意义的试验,对同一例题,请四位教师各自独立备课后,在不同的班级进行讲评,然后对四节课进 Lecture class is an important class of mathematics teaching. It plays a role in consolidating, enriching, perfecting, deepening, and correcting students’ knowledge. It is also a process of combing, integrating, and reusing knowledge; Investigating problem-solving methods, refining mathematics thoughts, exploring the laws of solving problems, improving the ability to analyze problems and solving problems, and optimizing the quality of thinking. The author conducted an interesting and meaningful experiment in teaching and research activities. , After the four teachers prepare their lessons independently, they will give lectures in different classes and then classify them in four lessons.