数学练习是巩固数学知识，提高数学能力的重要手段。但如果教师对练习题不加以筛选，就会增加学生负担，挫伤学习积极性。因此，要求教师精选练习题，提高数学训练的实效性。一、练习题设计应有针对性１设计的练习题应以教学大纲为准绳。练习题所涉及的内容和方法应是大纲的重 Mathematics practice is to consolidate mathematical knowledge, an important means to improve mathematical ability. However, if teachers do not screen the practice questions, they will increase the student burden and dampen the enthusiasm for learning. Therefore, teachers are required to select the exercises and improve the effectiveness of mathematical training. First, the design of exercises should be targeted 1 Design exercises should be based on syllabus. Exercises involved in the content and methods should be the weight of the outline