Mathematics Geometryusually ages 9–10

Transformations on a Grid

Identify, describe, and represent the position of a shape following a reflection or translation using appropriate language; know that the shape has not changed

How to tell they’ve got it

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

Reflect a triangle in a vertical mirror line on a coordinate grid and state the new coordinates
Translate a shape 3 units right and 2 units up and describe the movement
Explain that a reflected/translated shape is congruent to the original

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Try this together

If your child slides or flips a shape on squared paper, can they describe exactly where it ends up and confirm the shape itself hasn't changed size or angles?

Where this sits on the map

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

Builds on

Coordinates (age 8+)ages 8–9Performing reflections and translations on a coordinate grid requires the ability to plot specified points

Describing Movementsages 8–9Y4 translations on a grid is prerequisite to formal reflection and translation

Lines of symmetryages 8–9Completing symmetric figures supports understanding reflection

Transformations on a gridages 8–12Describing and representing reflections and translations requires the grid-based transformation diagram

Transformations on a Gridthis skill · ages 9–10

Unlocks

Translating and reflecting shapesages 10–11Coordinate-plane translations/reflections extend Y5 informal transformations

solid = must come firstdashed = helps

Curriculum alignment

Candidate matches to official curriculum codes — machine-suggested, unreviewed (v0.1).

Show candidate curriculum codes · 3 ACARA · 2 NSW · 3 VIC

Australian Curriculum v9 candidate

AC9M5SP03medium confidenceYear 5 · Space

describe and perform translations, reflections and rotations of shapes, using dynamic geometric software where appropriate; recognise what changes and what remains the same, and identify any symmetries

AC9M5SP02medium confidenceYear 5 · Space

construct a grid coordinate system that uses coordinates to locate positions within a space; use coordinates and directional language to describe position and movement

AC9M4SP02medium confidenceYear 4 · Space

create and interpret grid reference systems using grid references and directions to locate and describe positions and pathways

NSW syllabus codes & stages only

MA2-2DS-02high confidenceMathematics K-10 · Stage 2

MA2-GM-01medium confidenceMathematics K-10 · Stage 2

Victorian Curriculum 2.0 codes & levels only

VC2M5SP03medium confidenceMathematics · Level 5 · Space strand

VC2M5SP02medium confidenceMathematics · Level 5 · Space strand

VC2M4SP03medium confidenceMathematics · Level 4 · Space strand

These are candidate alignments generated by semantic matching — machine-suggested and unreviewed (v0.1), not official or verified mappings. For official curriculum content see australiancurriculum.edu.au, curriculum.nsw.edu.au and f10.vcaa.vic.edu.au. Don’t rely on them for registration or compliance purposes.

Nearby on the map

3-D shapes (age 9+)ages 9–10 Angle Sum Rulesages 9–10 Classifying shapes by line propertiesages 9–10 Degrees and turnsages 9–10

All Geometry skills →