Te reo Māori terms
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Learning objective overview
Master Teaching Guide coverage for this objective.
Current NZC (2007)
GM5-9
New NZC (2026)
NZC26-P4-GEO-SPR-K-Y9-01NZC26-P4-GEO-SPR-P-Y10-02NZC26-P4-GEO-SPR-P-Y9-02NZC26-P3-GEO-SPR-P-Y7-01NZC26-P3-GEO-SPR-P-Y8-01
Resources
- Alpha textbook: Reflection, Ex 26.01, pg 430
- Alpha textbook: Drawing translation, Ex 28.02, pg 478
- Alpha textbook: Using vectors to describe translations, Ex 28.03, pg 480-381
- Alpha textbook: Drawing Enlargement, Ex 28.06, pg 488-489
- Beta: Skills in Ex 27.02 – 27.05, pg 512 - 516
- Beta: Skills in Ex 26.01, pg 487
- CorbettMaths on translationsQuestions PDF · Answers
- CorbettMaths on enlargementsQuestions PDF · Answers
Terminology
- translation
- reflection
- enlargement
- scale factor
- vector
Task goals
- Identify whether a given mapping from a point to its image is a translation, reflection, or enlargement.
- Write the translation vector for a given shift, or find the image of a point or shape translated by a given vector.
- Reflect a point or a shape in the x-axis or y-axis and write the coordinates of the image.
- Find the scale factor of an enlargement given the side lengths, or the change in side length, of a shape and its image.
- Enlarge a point or a shape from a centre of enlargement by a given scale factor, including a fractional scale factor, and find the coordinates of the image.
- Reflect a point or shape in a mirror line other than the x-axis or y-axis, such as x = c or y = c, and name or use that line.
- Describe fully a single transformation (translation, reflection, or enlargement) that maps one given shape or point onto another.
- Explain which properties, such as side lengths, angles, congruence, or similarity, are preserved by translation, reflection, and enlargement, and compare the three transformations.
Where this fits
What leads into this objective, and where it goes next.
You are here
Transformation (Translation, reflection, enlargement)
Know
A set of points in a plane can be transformed by translation, reflection about a line, and rotation about a fixed point.
Statement▸
Year 9 · Geometry · Spatial reasoning
NZC26-P4-GEO-SPR-K-Y9-01
Do
Transforming 2D shapes in the coordinate plane by translation, reflection about a given line of symmetry, and rotation about a given point by a multiple of 90 degrees
Statement▸
Year 9 · Geometry · Spatial reasoning
NZC26-P4-GEO-SPR-P-Y9-02
For teachers
Need the fuller teaching notes for this objective? Open the Teacher guidance PDF.