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在初中数学中函数内容占有重要位置,然而初中生函数知识学得并不是很好,存在较多困难。如:函数概念理解不透、函数意识比较薄弱、数形结合思想欠缺等。笔者结合多年的教学经验归纳五点策略,即:函数概念形成过程要重视、分解组合数形结合要恰当、学生主体意识要增强、问题情境克服困难要创设、函数概念教学实例要引入。希望同仁提出宝贵意见。
In middle school mathematics, the content of the function occupies an important position, however, junior high school students’ knowledge of function is not very good and there are many difficulties. Such as: the concept of function impermeable, functional awareness is relatively weak, combination of lack of ideas and so on. The author combines five years of teaching experience to summarize the five strategies, namely: the concept of the formation of the function should pay attention to the combination of decomposition and combination of numbers to be appropriate, to enhance the awareness of the main students, the problem context to overcome the difficulties to create, function concept teaching examples to be introduced. I hope colleagues put forward their valuable opinions.