How can you tell they’ve got it: Coordinates (age 12+)?

If they’ve got it, you’ll see things like: Enlarge a shape by a given scale factor from a specified centre of enlargement; Determine the scale factor between two similar shapes by comparing corresponding sides; Explain why corresponding angles in similar shapes are equal while sides are in proportion. Or just try it together: If your child wants to enlarge a photo so it's three times bigger, can they work out the new dimensions — and explain that the shape stays the same but all lengths increase by the same factor?

Mathematics Geometry Ages 12–14

Coordinates (age 12+)

Your child can make a shape bigger by a scale factor. Enlarging a photo three times, every length triples while the shape stays the same.

In curriculum terms

Understand similarity as a relationship where one shape is an enlargement of another; construct similar shapes by enlargement with a given scale factor and centre, with and without coordinate grids

Ages are typical, not deadlines — follow your child’s pace. How to help at home →

How to tell they’ve got it

Tick these off as you see them — no test required.

Enlarge a shape by a given scale factor from a specified centre of enlargement
Determine the scale factor between two similar shapes by comparing corresponding sides
Explain why corresponding angles in similar shapes are equal while sides are in proportion

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Try this together

If your child wants to enlarge a photo so it's three times bigger, can they work out the new dimensions — and explain that the shape stays the same but all lengths increase by the same factor?

Where this sits on the map

Stuck here? Check the skills it builds on first. Confident? Here’s what it unlocks.

Builds on

Scale and similar shapesages 10–11Enlargement extends KS2 scale factor work with similar shapes

Coordinate Transformationsages 11–14Similarity and enlargement build on understanding rigid transformations first

Ratio Notationages 11–12Similar shapes have sides in a constant ratio — connects to ratio notation

Coordinates (age 12+)this skill · ages 12–14

Unlocks

Nothing on the map depends on this yet.

solid = must come firstdashed = helps

Curriculum alignment

Where this fits in the official school curriculum — our best automated guess, not yet checked by a person.

This skill sits beyond Year 6 in the Australian Curriculum, so no F–6 code is matched. It also sits beyond the NSW K–6 syllabuses. It also sits beyond Level 6 in the Victorian Curriculum.

Nearby on the map

Angles in trianglesages 12–14 Angles with parallel linesages 12–14 Circles: Circumference & Areaages 12–14 Understanding anglesages 12–14

All Geometry skills →