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生活是数学的源泉。著名数学家华罗庚说过:“宇宙之大,粒子之微,火箭之速,化工之巧,日常之需,无一能离开数学。”《标准》更强调:“数学教学要建立在学生已有认知发展水平和生活经验基础之上。”数学向生活原型的回归一夜之间已成为新课程最具操作性也最受推崇的一大做法。然而数学问题生活化并不是简单地把知识与生活沾沾边、挂挂钩.选择什么样的生活题材,如何在合适的时机切入,怎样引导学生于生活情境中主动发现知识、建构数学模型、获得情感体验才是最有挑战性的真功夫,也是一堂课高下优劣之分的一个重要评价因素。
Life is the source of mathematics. Hua Luogeng, a famous mathematician, said: “The universality of the universe, the micro-particles, the speed of rockets, the skill of chemicals, and the daily necessities, none of them can leave mathematics.” “Standard” emphasizes more: “Mathematics teaching should be based on Students already have a level of cognitive development and experience based on life experience. ”The return of mathematics to life prototypes overnight became the most actionable and most respected approach to the new curriculum. However, the problem of mathematics life is not simply linked to knowledge and life, what kind of life theme to choose, how to cut into the right time, how to guide students to take the initiative to find knowledge in life situations, to build mathematical models, to get emotional Experience is the most challenging real skill, but also an important factor in evaluating the advantages and disadvantages of a class.