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数学学习离不开解题,但数学题千变万化,因此,教师要引导学生把握解题规律,提高学生解决问题的能力。法国数学家笛卡儿告诉我们:“我所解决的每一个问题将成为一个模式,以用于解决其他问题。”笔者以下面这道题为例建立一个数学模型,用于解决一系列有关线段最大值或最小值的问题,形成解决问题的一些基本策略,体验新课标中“面对新的数学知识(问题)时,能主动寻找其实际背景”。
Mathematical learning can not be solved without solving problems, but the ever-changing mathematical problems, therefore, teachers should guide students to grasp the law of solving problems and improve their ability to solve problems. Descartes, a French mathematician, tells us: “Every problem I solve will be a model for solving other problems.” “The author uses the following example as an example to establish a mathematical model for solving a series of problems For the maximum or minimum of line segments, form some basic strategies to solve the problem and experience the new curriculum standard. ”In the face of new mathematical knowledge (problem), can take the initiative to find the actual background."