Lesson

Introduction to the lesson

Being able to identify the key features of shapes can help us in this lesson.

How many edges does each shape have?

a

Worked Solution

b

Worked Solution

Idea summary

An edge is a straight line that makes part of the outside of a shape.

This video looks at prisms, it starts with showing how a prism is made by looking at its net, and then looks at the faces, edges and vertices of a prism.

Here is a rectangular prism.

a

How many faces does it have?

Worked Solution

b

How many vertices does it have?

Worked Solution

c

How many edges does it have?

Worked Solution

Idea summary

A prism can be made with any polygon at its base.

makes, compares, sketches and names three-dimensional objects, including prisms, pyramids, cylinders, cones and spheres, and describes their features