练习的目的在于使学生所学得的基础知识得到巩固,掌握的基本技能趋于熟练。加强练习,不仅要注意练习的机会多、形式多,更重要的是更注意提高练习的质量,讲究练习的效果,而要做到这一点,重要的一环是精心选择练习题。怎样选择呢?《中学数学教学大纲(试行草案)》 The purpose of the exercises is to consolidate the basic knowledge students have learned and to master basic skills. To strengthen the practice, not only should pay attention to the opportunities for practice and many forms, but more importantly, they should pay more attention to the improvement of the quality of the exercises and pay attention to the effects of the exercises. To achieve this, an important part is to carefully select exercise questions. How to choose? “Secondary Mathematics Syllabus (Trial Draft)”