Complete polygons with missing coordinates

I can mark points specified as a translation from the origin.

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Year 4

Complete polygons with missing coordinates

I can mark points specified as a translation from the origin.

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Share activities with pupils

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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.

Remind pupils to carefully consider the relationship between the known coordinates. For instance, in a rectangle, if two points share the same x-coordinate, the third point on that vertical line will also share it. Use guided practice to reinforce this understanding.

Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).