平行线和垂直线
Parallel and perpendicular lines
识别水平线和垂直线，以及互相垂直和平行的线
Identify horizontal and vertical lines and pairs of perpendicular and parallel lines
学习证据 / Evidence
- 在图形和现实情境中指出水平线和垂直线
- 识别一组平行线（永不相交且始终保持相同距离的线）
- 识别垂直线（相交成直角的线）
- Point out horizontal and vertical lines in shapes and real-world contexts
- Identify a pair of parallel lines (lines that never meet and are always the same distance apart)
- Identify perpendicular lines (lines that meet at a right angle)
评估问题 / Assessment
如果{{name}}看一组铁路轨道或一个窗框，能指出哪些线是平行的（永不相交），哪些线是垂直的（相交成直角）吗？
If {{name}} looks at a set of railway tracks or a window frame, can they point to which lines are parallel (never crossing) and which are perpendicular (meeting at a right angle)?