Year 7 - Maths
Describing a translation
Transformations
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit introduces pupils to shape tranformations: enlargements, rotations, reflections and translations both by hand and with technology.
Lesson Summary
You will learn to understand the minimum information required to describe a translation.
Key Notes
- A translation can be described in terms of left/right and up/down.
- To be more precise, it is useful to have a scale to provide units of measurement.
- It is important to give both direction and distance.
- Direction and distance can be combined through use of displacement.
Vocabulary To Learn
- Displacement: Displacement is the distance from the starting point when measured in a straight line.
- Vector: A vector can be used to describe a translation.
Common Mistakes To Avoid
- Students may count between the closest two vertices rather than corresponding points.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
A translation can be described in terms of left/right and up/down. To be more precise, it is useful to have a scale to provide units of measurement.
2. Use this key word in a maths sentence and explain it clearly. 'Displacement'
Displacement is the distance from the starting point when measured in a straight line. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Students may count between the closest two vertices rather than corresponding points. Correction: Remind frequently that it needs to be between corresponding vertices, labelling may help for this.
More Lessons In This Unit
- Checking understanding of basic transformations Study Guide
- Describing a reflection Study Guide
- Describing a rotation's direction and size Study Guide
- Describing an enlargement Study Guide
- Enlarging objects Study Guide
- Introduction to enlargements Study Guide
- Introduction to reflections Study Guide
- Introduction to rotations Study Guide
- Introduction to translation Study Guide
- Investigating transformations with Desmos Study Guide
- Investigating transformations with GeoGebra Study Guide
- Problem solving with transformations Study Guide
- Reflecting objects Study Guide
- Rotating objects Study Guide
- Transformed objects Study Guide
- Translating objects Study Guide
- Understanding the centre of rotation Study Guide
Browse all guides in the Year 7 Maths guide library.