Myths about teaching can hold you back
- Year 7
Describing a translation
I can understand the minimum information required to describe a translation.
- Year 7
Describing a translation
I can understand the minimum information required to describe a translation.
Lesson details
Key learning points
- A translation can be described in terms of left/right and up/down.
- To be more precise, it is useful to have a scale to provide units of measurement.
- It is important to give both direction and distance.
- Direction and distance can be combined through use of displacement.
Keywords
Displacement - Displacement is the distance from the starting point when measured in a straight line.
Vector - A vector can be used to describe a translation.
Common misconception
Students may count between the closest two vertices rather than corresponding points.
Remind frequently that it needs to be between corresponding vertices, labelling may help for this.
To help you plan your year 7 maths lesson on: Describing a translation, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 7 maths lesson on: Describing a translation, 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.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 3 maths lessons from the Transformations unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1. is a transformation in which every point of a shape moves the same distance in the same direction.
Q2.Which of these images do not show a translation?
Q3.Which one of the following shapes cannot be translated onto one of the other shapes? [IMG 7.10.3.s3]
Q4.When a translation takes place, the invariant properties of a shape are
Q5.Which of these contains a non-translated shape?
Q6.Which of the figures matches Alex’s description?
Assessment exit quiz
6 Questions
Q1.Displacement is the from the starting point when measured in a straight line.
Q2.$${2\choose 1}$$ is a column vector. It has two numbers. Match each number with its meaning.
The top number, 2, is the -
horizontal displacement
The bottom number, 1, is the -
vertical displacement
Q3.Which vector matches this translation?
Q4.Which of the following shows a translation by $${2 \choose -3}$$?
Q5.Match the vector to the description.
$${-4 \choose 1}$$ -
left by 4 units and up by 1 unit
$${4 \choose 1}$$ -
right by 4 units and up by 1 unit
$${-4 \choose -1}$$ -
left by 4 units and down by 1 unit
$${4 \choose -1}$$ -
right by 4 units and down by 1 unit
Q6.A triangle ABC is translated. The corresponding coordinates are A(1,5) and $$A^{\prime}$$(2,7), B(5,8) and $$B^{\prime}$$(6, 10). C has coordinates (4,7). Work out the coordinates of the image of C.