近几年，我校把讨论引进课堂，摆脱了“教师主体”的阴影，扭转了学生被动学习的局面，全面提高了教学质量。下面谈谈在教学实践中的几点体会。 　　分析差异，合理分组。教师要面向全体学生，在小组合作学习中，根据问题难度的大小，把班级分成若干组。同桌讨论，适用于难度较 In recent years, our school introduced the discussion into the classroom, getting rid of the shadow of “teacher subject”, reversing the situation of students’ passive learning and improving the quality of teaching in an all-round way. Here to talk about some experience in teaching practice. Analysis of differences, a reasonable group. Teachers should be for all students in the group cooperative learning, according to the difficulty of the size of the problem, the class is divided into several groups. The same table discussion, applicable to more difficult