《数学课程标准》指出学生学习的知识应是有价值、有实用性的,教学的目的是为了学生的全面发展,同时强调数学课堂教学应具有有效性的特点。这就要求教师在教学中调动学生有效的学习情感及学习主动性,培养学生的学习信心,使学生走近数学,热爱数学,进而提高课堂教学的有效性。一、注重备课的有效性备课是教学工作的重要组成部分,是顺利进行课堂教学的基础和保证,也是上好课的前提。教师备课首先要认真钻研教 The standard of mathematics curriculum points out that the knowledge of students’ learning should be valuable and practical. The purpose of teaching is for the all-round development of students. At the same time, it emphasizes that mathematics classroom teaching should be effective. This requires teachers to mobilize students in teaching effective learning emotion and learning initiative, develop students’ confidence in learning, make students approached mathematics, love math, thereby enhancing the effectiveness of classroom teaching. First, pay attention to the effectiveness of lesson preparation Lesson preparation is an important part of teaching, is the basis for successful classroom teaching and assurance, but also a good lesson premise. Teacher preparation lesson should be carefully studied