Lesson 1

Accessing Areas and Pondering Perimeters

These materials, when encountered before Algebra 1, Unit 6, Lesson 1 support success in that lesson.

Lesson Narrative

The purpose of this lesson is to support students when they work with area and perimeter of rectangles. It prepares them to recognize linear and non-linear relationships presented in multiple ways in later lessons. When students complete the tables and write expressions for area and perimeter, they are expressing regularity in repeated reasoning (MP8).

Learning Goals

Teacher Facing

  • Revisit the meaning of area and perimeter of a rectangle.

Student Facing

  • Let’s think about rectangles.

Required Preparation

For the activity Inspect Some Rectangles, use your judgment about whether or not to make graph paper or calculators available, depending on whether they will support or get in the way of students’ access to the task.

CCSS Standards

Building On


Building Towards

Print Formatted Materials

Teachers with a valid work email address can click here to register or sign in for free access to Cool Down, Teacher Guide, and PowerPoint materials.

Student Task Statements pdf docx
Cool Down Log In
Teacher Guide Log In
Teacher Presentation Materials pdf docx

Additional Resources

Google Slides Log In
PowerPoint Slides Log In