Lesson 4: Dilations: find the scale factor

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. 

For temporal access: Click here.

Warmup: Observe the two figures in the applet below.

(1.) What is the scale factor from the original to the copy?

(2.) Explain how you know.

Activity #1 (30 minutes)

1. Topic: Dilations: find the scale factor(Applet).

2. Explainer Video: Dilations: find the scale factor.

Practice Exercise (30 minutes).

Topic: Dilations: find the scale factor.

Quiz Time – (Two sets: 30 minutes).

Topic: Dilations: find the scale factor (to be taken while you are logged in).

  1. An applet.
  2. An explainer video on "Dilations: find the scale factor".
  3. A skills exercise from the IXL website on "Dilations: find the scale factor". The questions exhibit an increasing order of difficulty. 
  4. Two sets of quizzes on "Dilations: find the scale factor". The questions exhibit an increasing order of difficulty, and an average score of 80% expected.