Mathematics·Geometry·procedural
Understanding angles (age 10+)
Recognise angles where they meet at a point, are on a straight line, or are vertically opposite; find missing angles using these properties
Suggested ages 10–11
Learning journey
Your child is developing advanced spatial skills — working with 3D shapes and nets, using coordinate grids with negative numbers, calculating angles, and understanding geometric transformations like reflection and translation.
Evidence of understanding
- Find a missing angle at a point given the other angles (total 360°)
- Use the straight-line property (angles sum to 180°) to find an unknown angle
- Identify vertically opposite angles and use the property that they are equal to find unknowns
Assessment prompt
If two straight lines cross each other, can Understanding angles (age 10+) tell you which pairs of angles are equal (vertically opposite) — and find a missing angle if you give them one of the others?
Standards alignment
No external standards are linked to this topic.