Lesson 2: Nets of three-dimensional figures

Before you have access to this lesson from the links below, click on “Materials” to see what’s covered. The exercise is expected to last for not more than 1 hour 3o minutes, and please, be ready to complete this lesson in ONE session. If you haven’t signed up for the IXL SKILLS package, the temporal login info that you purchase from the link below, will be valid for 48 hours. 

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Warmup: When the square faces of a cube are separated at the edges and laid out flat, they make a two dimensional figure called a net. In this warmup activity, you are going to find that out.

  • Pull the Net slider to the right to display the net of the cube. ​
  • Check the Formula box to see the formula to find the Surface Area.

In your own words, how do you justify the formula to find the surface area?

Activity #1 (30 minutes)

1. Topic: (Applet).

2. Explainer Video: Nets of three-dimensional figures.

Practice Exercise (30 minutes).

Topic: Nets of three-dimensional figures.

Quiz Time – (Two sets: 30 minutes).

Topic: Nets of three-dimensional figures(to be taken while you are logged in).

  1. An applet.
  2. Explainer video on "Nets of three-dimensional figures".
  3. Exercise questions on "Nets of three-dimensional figures". The questions exhibit an increasing order of difficulty. 
  4. Two sets of quizzes on "Nets of three-dimensional figures". The questions exhibit an increasing order of difficulty, and an average score of 80% expected.