一般的,形如y=k/x(k为常数,k≠0)的函数,叫作反比例函数,其中x是自变量,y是因变量.反比例函数在物理学中有广泛的应用.例1如图1,科学课上,同学用自制密度计测量液体的密度.密度计悬浮在不同的液体中时,浸在液体中的高度h(单位:cm)与液体的密度ρ(单位:g/cm^(3))成反比例函数关系,当密度计悬浮在密度为1 g/cm^(3)的水中时,h=20 cm.
在中学数学教学中,反比例函数的教学是一项非常重要的教学内容,也是中学生要掌握的重要知识点。由于中学反比例函数知识点比较抽象,对学生的画图能力和函数理解要求较高。网络画板在中学反比例函数中的应用在很大程度上为教师教学提供了便利。基于此,本文针对网络画板在中学反比例函数教学中的应用进行分析,希望能够为相关的教育工作者提供有力的参考意见。In middle school mathematics teaching, the teaching of inverse proportional functions is a very important teaching content and also an important knowledge point that middle school students need to master. Due to the abstract nature of knowledge about inverse proportional functions in middle school, there is a high demand for students’ drawing ability and understanding of functions. The application of online drawing boards in middle school inverse proportional functions has greatly provided convenience for teachers’ teaching. Based on this, this article analyzes the application of online drawing boards in teaching inverse proportional functions in middle schools, hoping to provide strong reference opinions for relevant educators.
