## Opener - Section 1: Launch

# Add and Subtract Linear Expressions Fluency

Lesson 6 of 10

## Objective: Students will be able to add and subtract linear expressions.

## Big Idea: Practice makes perfect! This lesson gives students an opportunity to practice their skills with adding and subtracting linear expressions.

*65 minutes*

#### Launch

*10 min*

**Opener: **As students enter the room, they will immediately pick up and begin working on the opener. Please see my instructional strategy clip for how openers work in my classroom 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. In today’s lesson, the intended target is, “I can add and subtract linear expressions.” 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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#### Summarize

*5 min*

**Exit Problem: **To summarize this lesson, I am going to have students complete one problem that applies linear expressions to perimeter (modeling, **MP 4**), and requires students to add and subtract linear expressions. Students will work the problem out on the back of their opener, and will turn them in on their way out of the classroom.

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*Thank you for all of the lessons you have posted. I am a second year teacher. The Step-by-step smart board lessons are very helpful and engaging for the students! | one year ago | Reply*

Hey Heather!

I've taught for 28.5 years, working on my 29.5 right now. I've worked with some great teachers, but you are by far THE most innovative teacher I've found! I'm thankful for your lessons and all your ideas. Thank you very much for helping an old war horse look tech smart with all your wonderful ideas!!

Thank you so much!!!!

Eileen Abercrombie

7th Grade Math

McCants Middle School

Anderson District 5

Anderson, SC

| one year ago | Reply##### Similar Lessons

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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: Simplifying Expressions - What are like terms?
- LESSON 2: Simplifying Expressions - Fluency Practice
- LESSON 3: Distributive Property
- LESSON 4: Distributive Property - Practice Makes Perfect!
- LESSON 5: Add and Subtract Linear Expressions
- LESSON 6: Add and Subtract Linear Expressions Fluency
- LESSON 7: Expressions Applications - Can you apply expressions to area and perimeter?
- LESSON 8: Factoring Linear Expressions - Can you "un" distribute?
- LESSON 9: Expressions Review
- LESSON 10: Expressions Test - What have you learned?