“极坐标系”教学设计探研

Exploration of Teaching Design of Polar Coordinate System

教师应通过对建立极坐标系的合理性、便捷性的探究,引导学生自主完成极坐标系的建立,并学会表示点的极坐标,为后面学习直角坐标与极坐标的互化、简单曲线的极坐标方程以及参数方程奠定基础。文章基于教学实践,对极坐标系的教学设计进行探讨,以帮助学生形成数学思想,培养数学素养。

Teachers should explore the rationality and convenience of establishing polar coordinate system,guide students to complete the establishment of polar coordinate system independently,and learn to express the polar coordinates of points,so as to lay a foundation for later study of the interaction between rectangular coordinates and polar coordinates,polar coordinate equation of simple curve and parametric equation.Based on teaching practice,this paper discusses the teaching design of polar coordinate system,in order to help students form mathematical ideas and cultivate mathematical literacy.