Students will be able to add and subtract linear expressions.

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

10 minutes

**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).

50 minutes

5 minutes

**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.