1. Understand that algebraic expressions represent both instructions and a quantity (C)
Assign this lesson plan directly to your students
Select classes or students to assign to:

You don't have any classes yet. Start managing your classes.





Load more students

There are no students in this class! Add students now.
You have no students not in classes!


Students without a class




Load more students

There are no students in this class! Add students now.
You have no students not in classes!

You haven't set up your roster yet! Start managing your students on LearnZillion.
Check out how you can integrate this lesson into your LMS.
Give us a few seconds to deliver that assignment directly to your students!
When the assignment is ready, students will see it under their 'My Assignments' tab. When the assignment is ready, students will see it under their 'My Assignments' tab. You can track their progress here.
Note: if you add students to a class after assigning, you will have to reassign to them or that class
Lesson objective: Understand that algebraic expressions can represent both a “recipe” and a quantity (that we may or may not be able to name with a number).
Students bring prior knowledge of properties of operations on numerical expressions from 5.OA. This prior knowledge is extended to algebraic expressions as students write algebraic expressions which describe the perimeter of picture frames. A conceptual challenge students may encounter is understanding that algebraic expressions might look different if a different "recipe" was used to create them, but these differentlooking expressions can still describe the same situation and have the same value.
The concept is developed through work with algebra tiles, which allow students to make a connection between concrete numeric representations and abstract algebraic representations.
This work helps students deepen their understanding of equivalence because they will see that equivalent expressions may look different, but they represent the same value (in this case, equivalent expressions represent the same perimeter of a picture frame.)
Students engage in Mathematical Practice 2 (Students reason abstractly and quantitatively) as they represent the perimeter of the picture frame symbolically and understand that different variable expressions represent the same value for the perimeter. Representing the frame with algebra tiles helps students make a transition from a concrete representation in which all lengths are known to an abstract representation in which some lengths are unknown.
Key vocabulary:
 expression
 equivalent
 value
Special materials needed:
 (optional) algebra tiles