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学习函数概念是学生理解函数知识以及解决函数问题的前提。函数概念的表述非常的简单,但学起来相对抽象,不易理解,教学中教师如何才能引导学生真正理解函数的概念,是一个值得深思的问题。下面笔者结合教学实践,谈谈个人的一些观点。1关注函数概念的特征,从学生实际出发进行创设函数是研究运动变化的重要数学模型,它研究的是变量之间相对应的规律,为了提升学生对函数概念的理解,教师提出以下几个问题让学生根据自己对函数概念的理解做出判断:
The concept of learning function is a prerequisite for students to understand function knowledge and solve function problems. The expression of function concept is very simple, but it is relatively abstract and difficult to understand. It is a question worth pondering how teachers can guide students to truly understand the concept of function in teaching. The following combination of teaching practice, talk about some personal point of view. 1 Focusing on the characteristics of the concept of function, starting from the students to create the function is an important mathematical model to study the movement changes, it is the study of the corresponding law between variables, in order to enhance students' understanding of the concept of function, the teacher asked the following questions Ask students to make judgments based on their own understanding of the functional concepts: