“回归学生的生活世界”是新一轮课程改革的基本理念,也是当前国际数学课程改革的基本趋势。教材的选编突破了传统教材那种单一的、理论化、体系化的数学结构,从学生的现实生活取材,让学生在解决生活中的问题时学习数学、理解数学、运用数学和发展数学。在教学中,有的老师照本宣科,根本没有把数学教学与学生的生活实际有机结合,没关注学生需要什么,所以课堂教学收效甚微。诸如这般因教学理念影响教学行为的现象在教学中屡见不 “Return to the student life world ” is the basic idea of ​​a new round of curriculum reform, but also the basic trend of the current international mathematics curriculum reform. The selection of textbooks breaks through the single, theoretical and systematic mathematical structure of traditional textbooks, draws lessons from students’ real life, and enables students to learn math, understand mathematics, apply mathematics and develop math while solving the problems in life. In teaching, some teachers according to the scripted, did not actually combine the mathematics teaching and student life, do not pay attention to what students need, so classroom teaching with little effect. Such as teaching philosophy because of the phenomenon of teaching behavior is not often seen in teaching