• Recognise and visualise transformations –
reflection, rotation and translation.
For each of the shapes below find their lines of symmetry:
W/S 10.1B
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.
For each of the shapes below draw the reflection in the mirror
line given:
W/S 10.2B
Did you reflect the shapes correctly?
In exams at KS3 and KS4 you can use tracing paper to help you with
questions about reflection.
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
arrowhead 90º anti-clockwise?
Using centre C can you rotate
this rhombus 90º clockwise?
C
W/S 10.3B
Did you rotate the shapes correctly?
C
C
C
You can use tracing paper in KS3 and KS4 exams
to help you rotate shapes.
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
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
B
The triangle labelled A
has been translated into
positions B, C, D and E.
Can You describe each of
these transformations
using a vector?
C
A
Example:
A
B is a translation
3
2
E
D
3 squares along and 2
squares up
Here are the correct
answers:
B
A
C
B
Translation
3
2
A
A
C
Translation
-2
1
E
1
A
D
Translation
D
-3
-1
A
E
Translation
-2
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
• Recognise and visualise transformations –
reflection, rotation and translation.
Thank you
for your
attention