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《数学课标》指出:“数学课程要符合学生的认知规律和心理特征,有利于激发学生的学习兴趣;要在呈现作为知识与技能的数学结果的同时,重视学生已有的经验,使学生体验从实际背景中抽象出数学问题
The Mathematics Curriculum Standard states: ”Mathematics courses conform to the cognitive rules and psychological characteristics of students and are conducive to stimulating students 'interest in learning. While presenting mathematical results as knowledge and skills, they should attach importance to the students' existing experiences, The student experience abstracts math problems from the actual context