坐标（11岁以上）
Coordinates (age 11+)
在笛卡尔平面（直角坐标系）的四个象限中绘制和读取坐标，使用正负 x 值和 y 值来精确描述位置。
Plot and read coordinates in all four quadrants of the Cartesian plane, using positive and negative x- and y-values to describe positions precisely
学习证据 / Evidence
- 在四个象限中准确标出含负坐标的点
- 根据坐标的正负号判断点所在的象限
- 从图形中读取包括分数和负数值在内的坐标
- Plot points with negative coordinates accurately in all four quadrants
- Identify the quadrant a point belongs to from its coordinate signs
- Read coordinates from a graph including fractional and negative values
评估问题 / Assessment
{{name}}能否在坐标网格上正确标出像(−3, 4)这样的点，并读出四个象限中点的坐标，包括负数？
Can {{name}} plot a point like (−3, 4) correctly on a coordinate grid and read the coordinates of points in all four quadrants, including negative numbers?