Describe translations of polygons drawn on a square grid
Lesson details
Learning outcome
I can describe translations of polygons drawn on a square grid.
Key learning points
- If a shape has moved you say it has been translated.
- If a shape has moved, you can describe the move using left, right, up, down and the number of squares moved.
- A shape can be translated in a vertical and horizontal direction.
Keywords
Translated / translating - Translation is a transformation in which every point of a shape moves the same distance in the same direction. The act of moving is to translate.
Translation - Translation is a transformation in which every point of a shape moves the same distance in the same direction.
Common misconception
Pupils might miscount the number of squares moved horizontally or vertically, resulting in an inaccurate translation.
Encourage pupils to count the number of squares carefully from the original position, possibly using a ruler or finger to help guide their counting. Practice with simpler shapes before moving to more complex polygons.
Teacher tip
Reinforce the difference between horizontal (left/right) and vertical (up/down) movements through visual aids, such as labeled arrows on the grid, and by practicing each type of movement separately before combining them.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Sofia gives directions to translate polygon A to B. She says, ‘translate A 2 squares down’. Is she correct?
Q2.Jacob gives directions to translate polygon A to B. He says, ‘translate A 3 squares right.’ Is he correct?
Q3.Jacob gives directions to translate polygon A to B. He says, ‘3 places right, 3 down.’ Is he correct?
Q4.Complete the sentence to describe the translation from A to B.
1 square down and squares right.
Q5.Which of these correctly describes the translation from A to B?
Q6.Sofia translated the polygon from A to B. What directions will translate the polygon back to its original position?
Assessment exit quiz
6 Questions
Q1.Select the correct word to make the sentence complete.
_____________ is a transformation in which every point of a shape moves the same distance in the same direction.
Q2.What translation is needed to move the polygon from A to B?
Q3.Lucas wants to translate the polygon from B to A. Which translation is incorrect?
Q4.What can you mark on a shape to help you translate it accurately?
Q5.Look at Sofia’s directions. Which image shows the correct translation?
3 squares right and 1 square up. What’s the new position?
Q6.Match the direction which describe the translations to the shapes.
To help you plan your 4 maths lesson on: Describe translations of polygons drawn on a square grid, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 4 maths lesson on: Describe translations of polygons drawn on a square grid, 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 2 maths lessons from the Coordinates unit, dive into the full primary maths curriculum, or learn more about lesson planning.