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# Inequalities

Lesson 16 of 22

## Objective: Students will be able to solve and graph inequalities with one variable.

#### Launch

*10 min*

**Opener: **As students enter the room, they will immediately pick up and begin working on the opener – **Instructional Strategy - Process for openers**. This method of working and going over the opener lends itself to allow students to construct viable arguments and critique the reasoning of others, which is **mathematical practice 3**.

**Learning Target: **After completion of the opener, I will address the day’s learning targets to the students. For today's lesson, the intended target is “I can solve and graph inequalities with one variable.” Students will jot the learning target down in their agendas (our version of a student planner, there is a place to write the learning target for every day).

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#### Explore

*45 min*

**Inequalities Guided Notes: **Inequalities Explore Narrative This lesson is taking a skill that students are proficient with (hopefully) and pushing it a step further. Students will apply their equation solving ability to inequalities (**mathematical practice 7**) - which require a graph of the solution. When graphing, it will be crucial that students pay close attention to precision (**mathematical practice 6**) - is the circle open or closed? shade left or right? Students are encouraged to check for reasonableness of their answer by testing values within the solution set (**mathematical practice 3**).

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#### Summary + Homework

*5 min*

**Instructional Strategy - Table Discussion: **To summarize this lesson, I am going to ask that students have a table discussion considering the question – What does the graph of an inequality represent? Too often, students do not understand that the graph is actually showing all of the answers to the inequality – because of the infinite number of decimals in between integers, there is no possible way to list all of the answers. Additionally – it is important to discuss why < and > the circle is open – the presence of the shaded circle represents that the value can be an answer. Of course, I am hoping students bring this up in discussion, but if not…I will lead the discussion there!

**Homework:** As students are having their table discussion, I will pass out the night’s assignment. This assignment allows students the opportunity to practice inequalities. Students will be asked to look over the assignment and identify any glaring questions before they leave class – I want all students to experience success!

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One part of the notes has an error. You have two greater than signs on the table and no less than signs. I know which greater than sign is supposed to be less than, but I wanted to notify you.

| one year ago | Reply*Responding to marjorie holland*

Even if you do not have a smart board, I have the smart files uploaded as PDFs so that you can see the content. If you open the PDF file included in the resources you can see the Hollywood Squares game :)

| 2 years ago | Reply

Great lesson. I wish I could see the Hollywood Squares game. That would have been so helpful.

| 2 years ago | Reply

I am glad you enjoyed the activity. I find that eventhough most of the kids have never seen (or heard of) the show - they get super excited to see their favorite superstars!

| 2 years ago | Reply

Thank you so much for the lesson idea! We do not have a smartboard but I recreated the Hollywood Squares game on a large whiteboard. I have found it challenging to engage students in inequalities practice until this.

| 2 years ago | Reply*expand comments*

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- UNIT 1: Introduction to Mathematical Practices
- UNIT 2: Proportional Reasoning
- UNIT 3: Percents
- UNIT 4: Operations with Rational Numbers
- UNIT 5: Expressions
- UNIT 6: Equations
- UNIT 7: Geometric Figures
- UNIT 8: Geometric Measurement
- UNIT 9: Probability
- UNIT 10: Statistics
- UNIT 11: Culminating Unit: End of Grade Review

- LESSON 1: One Step Equations
- LESSON 2: One Step Practice - If you are allowed to use tools....USE THEM!
- LESSON 3: MORE One-Step Equations - All Scrambled Up!
- LESSON 4: One Step Equations Review - Relay Race!
- LESSON 5: One Step Equations with Rational Numbers - TEST
- LESSON 6: Two Step Equations
- LESSON 7: More Two Step Equations Practice
- LESSON 8: Equations with Distributive Property
- LESSON 9: One and Two Step Equations Review
- LESSON 10: One and Two Step Equations Test
- LESSON 11: Applications of One Step Equations
- LESSON 12: Word Problems with Equations
- LESSON 13: More Real World Equations - Fluency Practice
- LESSON 14: Applications of Equations Review
- LESSON 15: Real World Applications Test
- LESSON 16: Inequalities
- LESSON 17: Inequalities - Negative Rule
- LESSON 18: Inequalities - Fluency Practice
- LESSON 19: Inequality Applications
- LESSON 20: Inequalities Review
- LESSON 21: Inequalities Test
- LESSON 22: Equations and Inequalities - 5 Days of Centers