Mathematics Geometry Procedural 8–9 yrs

Lines of symmetry

对称轴

Description

Complete a simple symmetric figure with respect to a specific line of symmetry

Mastery Evidence

✓ Given half a butterfly shape and a mirror line, complete the other half on a grid
✓ Complete a symmetric pattern on squared paper with a vertical line of symmetry
✓ Check a completed figure by folding along the mirror line

Assessment Prompt

If you show your child half a shape drawn on squared paper with a mirror line marked, can they draw the missing half so the whole shape is perfectly symmetrical?