抓住数学本质 渗透建模思想——以“一次函数的简单应用(1)”的教学为例

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一、教学内容分析“一次函数的简单应用(1)”是浙教版八年级上册第五章第五节的第一课时,在此之前学生已完成了对一次函数概念及三种表示形式的学习,还结合函数图像完成了对基本性质的探究,这就为过渡到本节的学习起到了铺垫的作用.虽然学生也曾接触了对方程及不等式等的建模学习,但通过图像建构数学模型尚属首次.教学中让 First, the teaching content analysis “Simple function of a function (1) ” is the first lesson of the fifth edition of Chapter V of the eighth edition of the Zhejiao Version, before the students have completed the concept of a function and the three representations Form of learning, combined with the function of the image to complete the basic nature of the inquiry, which for the transition to this section of learning play a bedding role.Although students also had contact with the equation and inequality modeling learning, but through the image It is the first time to construct a mathematical model
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