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在初中数学的教学中,变式教学是一个特色。从不同的角度将问题展现出来,或者将教学材料进行改变,这些都属于改变事物的外在特征而保留事物的内在本质,而这种为教学所做的改变,就是变式。因此,本文结合具体的教学案例,从概念的角度,以及定理、公式和法则的角度,最后是例题和习题的角度,来研究在平时上课讲解教材过程中的变式教学。
In the teaching of junior high school mathematics, variant teaching is a feature. Presenting problems from different perspectives, or changing teaching materials, all belong to changing the external characteristics of things while preserving the inner nature of things. This change in teaching is a variant. Therefore, this article combines the specific teaching cases, from the concept point of view, as well as from the perspective of theorems, formulas and rules, and finally from the perspective of examples and exercises, to study the variant teaching in the course of teaching materials in the ordinary course.