Transformed objects
I can identify whether a shape has been transformed or not.
Transformed objects
I can identify whether a shape has been transformed or not.
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Lesson details
Key learning points
- There are clues that can be looked for to determine if a shape has been transformed.
- If the size has changed, one shape may be an enlargement of the other.
- If the orientation has changed, one shape may be a rotation of the other.
- If the shapes are mirrored, one shape may be a reflection of the other.
- If the shapes look identical but are in different places, one may be a translation of the other.
Keywords
Transformation - A transformation is a process that may change the size, orientation or position of a shape.
Congruent - If one shape can fit exactly on top of another using rotation, reflection or translation, then the shapes are congruent.
Invariant - A property of a shape is invariant if that property has not changed after the shape is transformed.
Common misconception
Students may confuse reflections and rotations depending on the object.
A reflection is the only transformation that changes the sense of the object, so check that first.
To help you plan your year 7 maths lesson on: Transformed objects, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 7 maths lesson on: Transformed objects, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 3 maths lessons from the Transformations unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
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Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.The is the starting figure, before a transformation has been applied.
Q2.Which transformation changes the sense of an object?
Q3.When describing a rotation, you must state three things: the centre of rotation, the amount of turn and the .
Q4."When an object is enlarged, the image will always end up further away from the centre of enlargement." Select true or false and a justifying statement.
Q5.A transformation has taken place in this diagram. Select all of the invariant properties.
Q6.Complete the descriptions below by matching the transformation with the detail needed to describe it fully.
A rotation -
by $${270^{\circ}}$$ clockwise about (3,4).
A reflection -
in the x-axis.
A translation -
by $${-4 \choose 2}$$
An enlargement -
by scale factor 3 from (0, 0)
Assessment exit quiz
6 Questions
Q1.Which transformation does this property table belong to?
Q2.Select the diagrams that could have been a rotation.
Q3.The line of reflection is from both the object and image.
Q4.What transformation has occurred?
Q5.The object has been rotated about the point O, through __________.
Q6.Choose the correct description for this transformation.
