Isometric means distances between points stay the same. In this lesson we use isometric paper which has equally spaced dots or points.

A solid is a shape that has three dimensions (e.g. width, height and depth).

Representing 3D shapes in 2D

Maths

In the prior unit, pupils considered different views of a 3-D shape in order to understand how to calculate the surface area and volume. 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.

Plans and elevations

{{}} paper contains dots or points which are all equally spaced, such as in the diagram.

The image shows a photograph and an isometric drawing of a pencil sharpener. The value of $$a$$ is {{ }}.

The image shows a photograph and an isometric drawing of a pencil sharpener. The value of $$c$$ is {{ }}.

The image shows a solid that is constructed with two congruent cuboids and an isometric drawing of the solid. The value of $$a$$ is {{ }}.

The image shows a solid that is constructed with two congruent cuboids and an isometric drawing of the solid. The value of $$d$$ is {{ }}.

Which isometric drawing shows a cuboid with lengths 2 units, 3 units and 5 units?

If one shape can fit exactly on top of another using rotation, reflection or translation, then the shapes are __________.

The image is a 2D representation of a 3D shape. What is the shape?

The image is a 2D representation of a 3D shape. The shape is a {{ }}.

Jacob has got his pair of compasses ready to draw a circle. Which statements will be true?

This lesson will be removed by end of Summer Term 2025.

Representing 3D shapes in 2D

Lesson outcome

This lesson will be removed by end of Summer Term 2025.