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本节课是学生在学习了数轴以及部分平面几何知识后编排的,是之后学习函数及其图像、曲线与方程的基础。平面直角坐标系“是”数轴“的发展,是点与坐标的对应关系顺利实现了从一维到二维的过度,”平面直角坐标系“的建立使有序数对与平面内的点产生了一一对应,提供了用代数方法来研究几何问题的重要数学工具,是图形和数量之间的桥梁。
This lesson is arranged for students to learn several axes and some plane geometry, and is the basis for learning the function and its subsequent images, curves and equations. Plane Cartesian coordinate system ”is the “ number of axes ”development, is the correspondence between the point and the coordinates of the smooth realization of the one-dimensional to two-dimensional over, “ Cartesian coordinate system ”established so that the number of pairs of ordinal and plane There is a one-to-one correspondence between points within, providing an important mathematical tool to study the geometry problem algebraically, as a bridge between the number and the number of graphs.