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《初中数学课程标准》中指出:数学是人们对客观世界定性把握和定量刻画、逐渐抽象概括、形成方法和理论,并进行广泛应用的过程。数学课堂教学不仅要考虑数学自身的特点,更应遵循学生学习数学的心理规律,强调从学生已有的生活经验出发,让学生亲身经历将实际问题抽象成数学模
“Junior high school mathematics curriculum standards” pointed out: Mathematics is a qualitative grasp of the objective world and quantitative description of the gradual abstract summary, the formation of methods and theories, and widely used in the process. Mathematical classroom teaching should not only consider the characteristics of mathematics itself, but also should follow the psychological laws of students to learn mathematics, emphasizing starting from the students’ existing life experiences, allowing students to experience the practical problems abstracted into mathematical models