根据学生的学习能力,按组内异质、组间同质的方式对全班学生进行分组,在明确的学习目标驱动下,由组长在小组内进行习题的讲解,能充分调动学生学习的积极性,学生自主学习的能力增强,对习题课的教学起到了一定的作用. According to the students’ ability to learn, according to the heterogeneity within the group, the same way between groups grouped the class, driven by a clear learning objectives, by the team leader in the group to explain the exercises to fully mobilize the learning of students Enthusiasm, the ability of students to learn independently enhanced, the teaching of exercises has played a certain role.