Types of angles (age 11+)
Use conventional geometric terms and notation to describe, sketch, and draw points, lines, parallel and perpendicular lines, right angles, regular polygons, and reflectively/rotationally symmetric polygons
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If you ask your child to describe a triangle using proper geometry notation — naming its angles and sides with letters — can they do it clearly enough for someone else to draw it?
Use conventional geometric terms and notation to describe, sketch, and draw points, lines, parallel and perpendicular lines, right angles, regular polygons, and reflectively/rotationally symmetric polygons
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Check understanding
- Use correct notation for line segments (AB), angles (∠ABC), and parallel lines (AB ∥ CD)
- Sketch a regular hexagon and describe its rotational and reflective symmetry
- Identify and label perpendicular and parallel lines in a given figure using standard symbols
“If you ask your child to describe a triangle using proper geometry notation — naming its angles and sides with letters — can they do it clearly enough for someone else to draw it?”
Curriculum record
- Type
- Language
- Subject
- Mathematics
- Domain
- Geometry
- Age range
- Ages 11–13
Standards