有效的数学课堂应有数学魂、数学味,应着重引导学生掌握数学知识、领悟数学方法、理解数学思想。《数学课程标准》的颁布,掀起了一场前所未有的数学教改浪潮,现以国标苏教版第五册《认识分数》一课为例,谈谈如何提高小学数学课堂教学的有效性。分数是在学生学习了整数及四则计算以后学习的新的知识,是对数的一次拓展,是学生认识数的一次飞跃,同时又是学习小数的基础。学生对分数并不陌生,但还较肤浅。教学时既要利用学生对分数有一定认识的基础,更要帮助学生进一步理解 Effective mathematical classroom should have the spirit of mathematics, mathematics, should focus on guiding students to master mathematical knowledge, understanding of mathematical methods, understanding of mathematical thinking. The promulgation of the “Mathematics Curriculum Standard” has set off an unprecedented tide of math education reform. Now, taking the course of “Cognition Score”, the fifth volume of the national standard version of the Jiangsu Education Publishing House as an example, how to improve the effectiveness of the mathematics classroom teaching in primary schools is put forward. The score is a new knowledge that students learn after learning integer and four calculations. It is an expansion of the logarithm and a leap forward for students’ cognition. At the same time, they are the basis for learning decimals. Students are familiar with the score, but still superficial. Teaching should take advantage of the students have a certain understanding of the foundation, but also to help students further understand