1. Level 4/5 Booster
Lesson 10B
Transformations

2. Objectives: Vocabulary: angle of rotation rotation translation
Recognise and visualise transformations – reflection, rotation and translation.
Vocabulary:
angle of rotation
rotation
translation
reflection
vector
centre of rotation

3. For each of the shapes below find their lines of symmetry:
W/S 10.1B

4. Did you find them all?
The parallelogram has no lines of symmetry – make a parallelogram from paper and try folding if you are not convinced.

5. For each of the shapes below draw the reflection in the mirror line given:
W/S 10.2B

6. Did you reflect the shapes correctly?
In exams at KS3 and KS4 you can use tracing paper to help you with questions about reflection.

7. Using the centre C can you rotate this triangle 90º clockwise?
Using centre C can you rotate this rectangle 180º clockwise? C C
Using centre C can you rotate this rhombus 90º clockwise?
Using centre C can you rotate this arrowhead 90º anti-clockwise? C
W/S 10.3B

8. Did you rotate the shapes correctly?
You can use tracing paper in KS3 and KS4 exams to help you rotate shapes.

9. Here is a shape it has been rotated
Here is a shape it has been rotated. Can you find the centre and the angle of rotation?
Here is a shape that has been rotated can you find the centre and the angle of rotation?
W/S 10.4B

10. The centre of the rotation stays the same so the centre is the corner that has not moved.
This shape has been rotated 180º (clockwise or anticlockwise). C C
The shape has been rotated through 90º clockwise

11. The triangle labelled A has been translated into positions B, C, D and E.
Can You describe each of these transformations using a vector? B C A
Example:
A B is a translation 3 2 E D
3 squares along and 2 squares up

12. Here are the correct answers:B 3 2 A B
Translation C A C
- 2 1 A
Translation E 1
- 3 A D
Translation D 1
- 2 A E
Translation

13. Task:
Draw a 1 by 2 right-angled triangle in different positions and orientations on 5 by 5 spotty paper. Choose one of the triangles to be the original. Describe fully the transformations from your original to each of the other triangles drawn.
You need W/S 10.5B

14. Objectives: Vocabulary: angle of rotation rotation translation
Recognise and visualise transformations – reflection, rotation and translation.
Vocabulary:
angle of rotation
rotation
translation
reflection
vector
centre of rotation

15. Thank you for your attention