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曾记得,笔者在上初中时,对函数内容的学习是不理解、太抽象了,怎么学也不会,现在作为教师,面对函数的教学,如何让学生能理解、能应用,笔者认为关键是通过画图,使学生慢慢的体会“数”与“形”的转化:数形结合思想.一、应让学生多次经历列表、描点、连线的画函数图象的过程,由数(列表)到形(点的变化),使学生理解数形结合思想的转化过程:函数关系式(?)
I remember, when I was in junior high school, the function of the content is not understood, too abstract, how to learn not, and now as a teacher, the face of function teaching, how to make students understand, can be applied, I think the key Is through the drawing, so that students slowly experience “number ” and “shape ” conversion: the number of forms combined with the idea of one, should allow students to repeatedly through the list, tracing point, the process of drawing a function image , From number (list) to form (point change), to enable students to understand the process of transformation of number-associative thinking: Function Relationships (?)