Mathematics
Geometry
Conceptual
8–10 yrs
2-D shapes (age 8+)
二维图形（8岁以上）
Description
Identify lines of symmetry in 2-D shapes presented in different orientations; recognise line-symmetric figures and draw lines of symmetry
Mastery Evidence
- Find all lines of symmetry in a rectangle, square, and equilateral triangle
- Determine whether a given shape has a line of symmetry when rotated
- Identify which shapes in a set have exactly one line of symmetry
- Determine how many lines of symmetry a regular hexagon has
- Draw all lines of symmetry for a given figure
- Identify which figures from a set are not line-symmetric
Assessment Prompt
If your child is given a picture of a butterfly or a star shape, can they draw the line (or lines) where you could fold it exactly in half so both sides match?
