Year 6 - Maths
Reflect simple shapes in the axes on a full coordinate grid
Area, perimeter, position and direction
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will explain how to calculate the area of a parallelogram and a triangle. They will describe the relationship between scale factors and side lengths. They will describe positions in all 4 quadrants.
Lesson Summary
You will learn to reflect simple shapes in the axes on a full coordinate grid.
Key Notes
- When reflecting a shape in the axes, the reflection and original shape should be the same distance from the axis.
- The shape remains the same size and shape after it has been reflected.
- If you put a mirror on the axis, the new shape will look the same as the original shape.
Vocabulary To Learn
- Reflect: A reflection is an image or shape as it would be seen in a mirror.
- Axes: The x and y lines that cross at right angles to make a graph or grid are called axes, which is the plural of axis.
Common Mistakes To Avoid
- One of the most common mistakes pupils make when reflecting is to flip the shape. Essentially, they translate the shape rather than reflecting it.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
When reflecting a shape in the axes, the reflection and original shape should be the same distance from the axis. The shape remains the same size and shape after it has been reflected.
2. Use this key word in a maths sentence and explain it clearly. 'Reflect'
A reflection is an image or shape as it would be seen in a mirror. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: One of the most common mistakes pupils make when reflecting is to flip the shape. Essentially, they translate the shape rather than reflecting it. Correction: Attention is given at the start of the lesson to examples and non-examples of reflections, including the above misconception. Use real mirrors and ask pupils to reflect objects in them, noticing the direction in which the reflection is facing.
More Lessons In This Unit
- Describe the relationship between scale factors and perimeters of two shapes Study Guide
- Draw and complete simple shapes by plotting positions on the full coordinate grid Study Guide
- Draw and translate simple shapes on the full coordinate grid Study Guide
- Explain how to calculate the area of a parallelogram Study Guide
- Explain how to calculate the area of a triangle Study Guide
- Solve problems involving area and perimeter Study Guide
- Solve problems involving missing coordinates Study Guide
- Use the area of a parallelogram formula to calculate unknown measurements Study Guide
- Use the area of a triangle to calculate unknown measurements Study Guide
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