Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 6.ee Rectangle Perimeter 2

For Teachers 6th - 8th
This task is a natural follow up for task Rectangle Perimeter 1. After thinking about and using one specific expression for the perimeter of a rectangle, they now extend their thinking to equivalent expressions for the same quantity....
Interactive
University of Colorado

University of Colorado: Ph Et Interactive Simulations: Area Builder

For Students 3rd - 8th Standards
Create shapes using colorful blocks, and explore the relationship between perimeter and area. CCSS.Math.Content.3.MD.C.7.a Find the area of a rectangle with whole-number side lengths by tiling it
Activity
The Math League

The Math League: Area and Perimeter

For Students 9th - 10th Standards
This tutorial provides a brief introduction about what area is, then gives the formulas for area of a square, rectangle, parallelogram, trapezoid, triangle, and circle. Examples of each formula are provided.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 6.g Painting a Barn

For Teachers 6th Standards
This task asks students to determine the area of the exterior walls of a barn and to calculate how many gallons of paint would be needed to cover them, as well as the cost of the paint. Aligns with 6.G.A and 6.RP.A.3.
Lesson Plan
Homeschool Math

Homeschool Math: Area of Parallelograms

For Teachers 6th - 7th Standards
This lesson plan presents the idea that the area of any right triangle is exactly half of a certain rectangle, and contains varied exercises for young scholars.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 6.rp Converting Square Units

For Teachers 6th Standards
In this task, 6th graders must inches to feet in order to find the area of a rectangular board and explain the error in the calculations made by the board owner. Aligns with 6.RP.A.3.