### Description

The lesson gives students an opportunity to work with equations with variables without having to solve the equation. Instead, they practice working with the various parts of the equations so when they eventually need to solve the equation they will already know and understand several of the steps. Combining Like Terms (CLT) is a process used to simplify an expression or equation using addition and subtraction of the coefficients of terms as well as constants. Terms are separated by + (plus) and – (minus) signs.

**Sample Classroom Procedure / Teacher Instruction: **

- Begin by explaining to students that often we group items based on similar characteristics. They may be more aware of this in science class. Allow students to link to previous science knowledge.
- While reading the content pages, reinforce vocabulary and give students additional examples of combining like terms problems in order to help them practice. Use the additional resources to enhance understanding.
- Introduce the notes on combining like terms. Have students practice problems. Use the additional resources to enhance understanding.
- Have students practice problems using the house method.
- Follow Activity page with students. Have students work individually or in pairs.
- Distribute Practice page. Check and review the students’ responses as a class.
- Distribute the Homework page. Have students bring in their projects and hang them around the classroom.
- In closing, ask students if you can combine 2x and 2y.
- Allow for responses and discussion.

**Common Core State Standards: **

None for Grade 5

CCSS.Math.Content.6.G.A.3

**Class Sessions (45 minutes):** 1 class session

**Additional Resources: **

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