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Year 10 - Maths

Representing 3D shapes in 2D

Plans and elevations

Unit Summary

In this unit, pupils will be considering a 3-D shape from different viewpoints in order to draw the side and front elevations as well as the plan view.

Lesson Summary

You will learn to use isometric paper to draw a solid made from cuboids.

Key Notes

  • Isometric paper aids the drawing of a solid constructed from cubes.
  • The drawing will look 3D.
  • The final picture has three distinct viewpoints.

Vocabulary To Learn

  • Isometric paper: Isometric means distances between points stay the same. In this lesson we use isometric paper which has equally spaced dots or points.
  • Solid: A solid is a shape that has three dimensions (e.g. width, height and depth).

Common Mistakes To Avoid

  • Pupils count all the triangles in a row to determine length rather than only counting the ones which have an edge on the line.

3 Quick Questions (With Answers)

1. Solve this in steps: explain the method from this lesson and why each step matters.

Isometric paper aids the drawing of a solid constructed from cubes. The drawing will look 3D.

2. Use this key word in a maths sentence and explain it clearly. 'Isometric paper'

Isometric means distances between points stay the same. In this lesson we use isometric paper which has equally spaced dots or points. Use this word when showing your method, then check your final answer is reasonable.

3. Spot and fix this common maths mistake.

Mistake: Pupils count all the triangles in a row to determine length rather than only counting the ones which have an edge on the line. Correction: Encourage pupils to consider what they are using to measure when they draw each line on isometric paper.

More Lessons In This Unit

Browse all guides in the Year 10 Maths guide library.