- Year 4
Complete polygons with missing coordinates
I can mark points specified as a translation from the origin.
- Year 4
Complete polygons with missing coordinates
I can mark points specified as a translation from the origin.
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Lesson details
Key learning points
- Use knowledge of polygon properties to identify a missing vertex.
- Use known coordinates to plot a missing coordinate.
Keywords
Vertex / vertices - A vertex is the point where two or more line segments meet. The plural is vertices.
Common misconception
Pupils may not correctly identify the type of polygon (e.g., rectangle, square, parallelogram), leading to errors in determining the missing coordinate.
Encourage pupils to first identify the polygon by examining the given vertices. Review the properties of common polygons (e.g., opposite sides of a rectangle are equal and parallel). Use visual aids or models to reinforce these properties.
To help you plan your year 4 maths lesson on: Complete polygons with missing coordinates, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 4 maths lesson on: Complete polygons with missing coordinates, 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 2 maths lessons from the Coordinates unit, dive into the full primary 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.Select the image that does not show a right angle.
Q2.Two lines are perpendicular if they meet at a angle.
Q3.What is the name of the shape which is to the left of the hexagon?
Q4.What is the name of the shape which is below the circle?
Q5.What are the coordinates of the star? Remember to use brackets and a comma.
Q6.Sofia thinks of a shape. She says it has 4 sides and 4 vertices. It has exactly one pair of parallel lines. What shape could she be describing?
Assessment exit quiz
6 Questions
Q1.You have three vertices of a rectangle: A, B, and C. Where should vertex D be?
Q2.Lucas wants to find the coordinates of the missing vertices to complete the square. Which coordinates complete the square?
Q3.Sofia wants to create a pentagon. She uses a dot to plot the final vertex. Which coordinates could it not be?
Q4.Sofia completes a rectangle by plotting points C and D. Is she correct?
Q5.Sofia has plotted the final two vertices of a quadrilateral. She thinks that it’s a rectangle. Is Sofia correct?
Q6.Lucas plots another coordinate to complete a trapezium. He say he will plot it at (1, 2). Will this create a trapezium?