Mathematics
Geometry
Conceptual
7–8 yrs
Parallel and perpendicular lines
平行线与垂直线
Description
Identify horizontal and vertical lines and pairs of perpendicular and parallel lines
Mastery Evidence
- 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)
Assessment Prompt
If your child 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)?
