Combining Reflections
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Lesson details
Key learning points
- In this lesson, we will explore when combining reflections can be written as a single transformation.
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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.
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5 Questions
Q1.
Shape A is reflected in the line x=1. Which shape shows where the image would be?
Shape C
Shape D
Q2.
Describe the transformation from Shape D to Shape C.
Reflection in the x axis
Reflection in the y axis
Translation 4 right and 1 up
Translation 7 left and 1 down
Q3.
Two students are describing the transformation of Square X on to Square Y. Shivani says that it is a reflection in line 𝑥=2. Mohammed says that it is a rotation 180° about (2,2) in either direction. Who is correct?
Mohammed only
Shivani only
They are both incorrect.
Q4.
Emmanuel claims that you can only describe the transformation of the shaded squares on to each other through translation. Is this true or false?
True
Q5.
Select all the options below that correctly describe the single transformation from Rectangle A to Rectangle D?
Reflection in the x axis followed by a reflection in the y axis
Translation 4 down and 4 left
5 Questions
Q1.
Fill in the gap: A combination of ________ can sometimes be described by a different single transformation.
operations
reflected
transformer
Q2.
Select the option that would best fill in the gaps in ORDER: Triangle A is reflected in the line M1 to give_____. A' is then _________ in the line M2 to give ______.
A' (middle triangle), translated, A''(furthest right triangle)
A'' (furthest right triangle), reflected , A' (middle triangle)
A'' (furthest right triangle), translated, A' (middle triangle)
Q3.
A could also be mapped to A'' by what vector translation?
A
B
C
Q4.
Triangle S is reflected in the y axis and then in x=-3. Describe the single transformation from S to the final image.
B
C
D
Q5.
A shape in the negative quadrant has been reflected in x=6 and then reflected in x=11. Describe the single vector translation that maps the object to the final image.
A
B
D
Not enough information to know