Lesson Plan
OER Commons

Oer Commons: Area of a Circle

For Teachers 7th Standards
Seventh graders will compare the formula for the area of a regular polygon to discover the formula for the area of a circle.
Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Lesson: Area

For Teachers 9th - 10th Standards
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
Lesson Plan
OER Commons

Oer Commons: Polygons

For Teachers 7th
Seventh graders find the area of regular polygons, recalling what they already know about the area of geometric shapes and generalizing a formula for any regular polygon.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co Inscribing a Hexagon in a Circle

For Teachers 9th - 10th Standards
In this task, young scholars inscribe a regular hexagon inside a circle and compare its area to that of the circle. Aligns with G-CO.D.13.