Chapter 9.1
Translations on a grid
Shift shapes across grids using count-based moves.
Chapters
12
Translations, reflections, rotations, enlargements.
Time invested
9 hrs
Approximate guided learning.
Completed
0
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Start with Chapter 9.1 to begin this section.
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Transformations mark themselves complete when you finish the exercises.
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Chapter 9.2
Translations using vectors
Use vector notation to describe translations precisely.
Chapter 9.3
Reflections in x or y axes
Flip shapes in major axes and describe the mirror lines.
Chapter 9.4
Reflections in other lines
Reflect across diagonals like y = x or custom mirror lines.
Chapter 9.5
Rotation around a point
Rotate shapes clockwise/counterclockwise about origins.
Chapter 9.6
Rotations using coordinates
Apply coordinate rules for 90°, 180°, and 270° rotations.
Chapter 9.7
Enlargements with positive scale factors
Scale shapes from a centre using whole-number factors.
Chapter 9.8
Finding the centre of enlargement
Trace rays back to locate the exact enlargement centre.
Chapter 9.9
Negative scale factors
Enlarge with reflections by using negative factors.
Chapter 9.10
Congruent shapes
Prove shapes are congruent using transformation language.
Chapter 9.11
Similar shapes
Connect enlargements to similarity proofs and ratios.
Chapter 9.12
Combined transformations
Sequence multiple moves and describe the overall mapping.
Next steps
Need more geometry fluency? Revisit Section 8’s angle work, or move on to Year 8 Statistics & Probability after finishing these transformations.