Curated OER
Four Estimating the Area of Small Objects Problems
In this estimating area learning exercise, students work with their families to draw four small objects found around their house and estimate the area of each object.
Shodor Education Foundation
Shodor Interactivate: Lesson: Estimation (Elementary)
In this lesson students will practice estimation with computation, counting, length and area.
Shodor Education Foundation
Shodor Interactivate: Lesson: Area
This lesson plan helps students explore the mathematical concept of area and features resource links to further learning. CCSS.Math.Content.3.MD.C.7.a Find the area of a rectangle with whole-number side lengths by tiling it
University of Georgia
University of Georgia: Texas Area Estimate
Drawings and discussion of several methods to estimate the area of an irregular shape, like the state of Texas.
National Council of Teachers of Mathematics
Nctm: Figure This: Chocolate (Pdf)
Here's a delicious math challenge for chocolate lovers! Use your estimation and measurement skills to discover which irregular shaped, chocolate covered cookie has the largest surface area. A one-page activity from the NCTM Math...