Illustrative Mathematics
Rectangle Perimeter 2
While this activity is centered around expressions that represent the perimeter of a rectangle, it also hits at the fundamental concept of equivalent expressions, simplifing expressions, and like-terms. Classmates express their...
Illustrative Mathematics
Rectangle Perimeter 3
This activity looks at writing expressions to represent perimeter of a rectangle and then considers the concept of equivalent expressions and the distributive property in more detail.
Illustrative Mathematics
Rectangle Perimeter 1
Creating an expression to represent the perimeter of a rectangle is a fundamental beginning skill in learning how to use and define variables. This activity starts with the basics and can be followed up with additional tasks.
Curated OER
Lots of Rugs, One Perimeter
In this perimeter worksheet, students find the perimeter of a set of 6 "rugs," then circle the one that has the same perimeter as the rug at the top of the page.