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# Graphing Systems of Linear Inequalities (Day 2 of 2)

Lesson 4 of 5

## Objective: SWBAT solve and graph linear systems of inequalities on a coordinate plane.

*80 minutes*

#### Do-Now

*10 min*

Students will complete the Do Now while the graded Exit Cards from our last class are passed back. Volunteers will come up to the board to sketch their responses from the Do-Now.

Next, a student will read the objective, **"SWBAT solve and graph linear systems of inequalities on a coordinate plane".**

#### Resources

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#### Guided Notes + Practice

*20 min*

Today's class will be used to practice graphing linear inequalities. This concept was previously introduced, but students usually require a second day to solidify mastery of this topic.

The four example problems on our Guided Notes will be more challenging for students than than our previous class, so the first half of each example may have to be modeled as a whole group. We will review responses after each question, and I will ask students to lead the class through this portion.

#### Resources

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#### Partner Activity: Matching

*40 min*

*Teaching Note: This activity must be cut out and paper clipped by the teacher before class begins.*

Students will work in pairs to match the systems of inequalities cards. Each set will have a question and its corresponding graph. When students finish, the cards should be glued down on a piece of colored paper.

#### Resources

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#### Closing

*10 min*

After we reconvene as a whole group, I will ask students to brainstorm a real world scenario or example that could be modeled and solved with a system of inequalities. Four to five students will then share their examples with the class.

Lastly, students will complete an Exit Card.

#### Resources

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I cannot open the systems of inequalities cards. I keep getting an error message when I try to open it.

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- UNIT 1: Welcome Back! - The First Week of School
- UNIT 2: Linear & Absolute Value Functions
- UNIT 3: Numeracy
- UNIT 4: Linear Equations
- UNIT 5: Graphing Linear Functions
- UNIT 6: Systems of Linear Equations
- UNIT 7: Linear Inequalities
- UNIT 8: Polynomials
- UNIT 9: Quadratics
- UNIT 10: Bridge to 10th Grade