Mathematics·Geometry·language
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
Suggested ages 11–13
Evidence of 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
Assessment prompt
If you ask Types of angles (age 11+) 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?
Standards alignment
7.G.2US · ccss-math
Draw geometric shapes with given conditions
Common Core State Standards for Mathematics · 7
KS3.Maths.Geo.5GB · uk-nc-2013
Describe and Sketch Geometric Features
The national curriculum in England: Key stages 1 and 2 framework document · Key Stage 3