练习,是课堂教学中不可缺少的环节。它不但是促成知识的迁移、理解和巩固的重要途径,也是把知识转化成技能技巧的必要手段。为了使练习重点突出、分量适当、效果显著,教师必须做到认真设计,精心选择。一、目的性练习必须十分强调目的性,盲目地多练是费力不讨好的无效劳动,不但增加师生负担,还会影响学生对练习的兴趣。 Practice, is an indispensable part of classroom teaching. It is not only an important way to facilitate the transfer, understanding and consolidation of knowledge, but also a necessary means of transforming knowledge into skills and skills. In order to highlight the practice, appropriate components, the effect is significant, teachers must be carefully designed, carefully chosen. First, the purpose of the practice must be very focused on the purpose of blindly practice more is not thankless ineffective labor, not only increase the burden on teachers and students, but also affect students’ interest in practice.