Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co Origami Regular Octagon

For Teachers 9th - 10th Standards
After successive folds of a piece of origami paper, a student must explain why the shape made is a regular octagon. Aligns with G-CO.A.3 and G-CO.D.12.
Lesson Plan
Better Lesson

Better Lesson: Identifying 2 D Shapes

For Teachers 2nd Standards
In this activity, 2nd graders will identify shapes found around the room by recognizing their attributes such as number of angles, vertexes, and faces.
Graphic
Curated OER

Wikipedia: National Historic Landmarks in Washington, d.c.: Octagon House

For Students 9th - 10th
Plantation owner's home lent to President Madison after the Burning of Washington in 1814.
Interactive
Quia

Ixl Learning: Identify Shapes I

For Students K - 1st Standards
This interactive media source asks students to determine which picture shape matches the name of the shape that is displayed in each question.