《数学课程标准》指出:义务教育阶段的数学课程要面向全体学生,体现基础性、普及性和发展性。实现人人学有价值的数学,人人都能获得必需的数学,不同的人在数学上得到不同的发展。如何做到既面向全体,又能针对个体,促进学生得到自己应有的发展,作为教师首先应该了解学生、理解学 The Mathematics Curriculum Standards states that the mathematics curriculum at the compulsory education stage should be oriented toward all students and reflect basicity, popularity, and development. To realize the valuable mathematics for everyone, everyone can acquire the necessary mathematics, and different people get different developments in mathematics. How to do it for the whole, but also for the individual, to promote students to get their own development, as teachers should first understand the students, understanding