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.
Unit Plan
Khan Academy

Khan Academy: Compare Areas by Multiplying

For Students 2nd - 4th
Compare the areas of rectangles represented in images or contexts. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Srt Extensions, Bisections, Dissections in Rectangle

For Teachers 9th - 10th Standards
In this task, students must draw a diagram from a verbal description and use their understanding of similar triangles to find the area of a quadrilateral. Aligns with G-SRT.B.5.
Unit Plan
Cuemath

Cuemath: Quadrilaterals

For Students 5th - 8th
Explore the world of quadrilaterals and their properties. Find answers to questions like what are quadrilaterals, how they are formed, easy ways to identify them, and commonly seen quadrilaterals around us.