# Identifying, describing & representing the position of a shape following a reflection

## Lesson details

### Key learning points

1. In this lesson, we will learn about a second type of transformation called reflection. We will look at how to reflect shapes across a mirror line on a squared grid.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
Which of the following changes when a point is translated to the right?
Both the x and the y coordinates
Neither the x or the y coordinates
The y coordinate
Q2.
Which of the following changes when a point is translated down?
Both the x and the y coordinate
Neither the x or the y coordinates
The x coordinate
Q3.
If the point (-3,4) is translated six right and 1 down what will the new translated coordinate be?
(10,3)
(3,10)
(4,-3)
Q4.
If the point (-9,2) is translated nine right and 3 up what will the new coordinate be?
(-6,11)
(11,-6)
(5,0)
Q5.
A triangle with the coordinates (-1,0) (0,1) and (0,0) translates 4 right and 1 up. What are the new translated coordinates?
(3,0) (4,1) (2,4)
(3,1) (4,0) (4,2)
(3,1) (4,1) (2,4)

## Exit quiz

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### 5 Questions

Q1.
Which of the following statements are correct?
Correct answer: Reflection and Translation are both types of transformations
Reflection and Translation are not types of transformations
Reflection is the only type of transformation
Translation is a type of transformation however Reflection is not
Q2.
Which of the following is a synonym of the word reflect?
Coordinating
Image
Translate
Q3.
If the vertices A and B were both 4 squares away from the mirror line, then which of the following statements is correct when they are reflected?
None of the above
Correct answer: Vertices A' and B' are also 4 squares away from the mirror line
Vertices C and D are 2 squares away from the mirror line
Vertices C' and D' are also 4 squares away from the mirror line
Q4.
Which of the following statements is correct?
Correct answer: A mirror line is a straight line which shows that both sides have exact reflective symmetry
A mirror line is a straight horizontal line which shows that both sides have exact reflective symmetry
A mirror line is a straight vertical line
A mirror line is a straight vertical line which shows that both sides have exact reflective symmetry
Q5.
If point A is 9 squares away from a mirror line and point B is exactly half way between point A and the mirror line then where is point B'?
4 squares away from the mirror line
Correct answer: 4.5 squares away from the mirror line
5.5 squares away from the mirror line
9 squares away from the mirror line