Complete the exercises in this section at your pace. Before you begin, click on “**Materials**” to verify what’s covered. The Geogebra Activity for this lesson will be created **only** upon request, and you’ll receive a link in your inbox to join a class in Realtime! Also, if you haven’t signed up for the IXL SKILLS PACKAGE yet, the login credentials you’ll receive from the link below, will expire after 2 days.

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Warmup

**Activity #1** (30 minutes)

1. Topic: Is a matrix invertible?(Applet).

2. Explainer Video: Is a matrix invertible?

**Practice Exercise**

Topic: Is a matrix invertible?

**Quiz Time** – (Two sets: 30 minutes each).

Topic: Is a matrix invertible?

- An applet.
- Explainer video on "Is a matrix invertible?".
- Exercise questions on "Is a matrix invertible?". The questions exhibit an increasing order of difficulty.
- Two sets of quizzes on "Is a matrix invertible?". The questions exhibit an increasing order of difficulty, and an average score of 80% expected.

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