Nets and Surface Areas

Nets & Surface Areas

Year 8

In this lesson you will...

• Be able to fold shapes in your mind better

• Understand the relationship between faces of a cuboid and cube

• Have an idea on how to calculate the surface area of a cuboid and a cube

Which ones work?

​Try folding your nets into a cuboid or cube. Which ones work and which ones don't? How?

Multiple Select

Which option(s) can be made into a cube?

• i

• ii

• iii

• iv

• v

Multiple Select

Which option(s) can be made into a cube?

• a

• b

• c

• d

Multiple Select

Which of the figures can be folded into a cuboid?

• Figure 1

• Figure 2

• Figure 3

• Figure 4

Multiple Choice

Which of these nets will give you a cuboid when folded?

• A

• B

• C

• D

How many walls do your cuboids have? Are any of the walls equal?

​

Which parts are equal (the same)?

Color in the walls that you think are equal, and share your findings with your partner.

Help yourself understand with pens and colors (or patterns)!

Is knowing just 3 walls enough to know all of the walls?

Give a value to the area of the walls.