Mathigon
Mathigon: Euclidean Geometry: Origami and Paper Folding
This lesson focuses on a different way to construct geometric figures without tools, Origami. The goal is to make objects out of one or more sheets of paper, without any additional tools like glue or scissors. You can create incredibly...
PBS
Pbs Learning Media: Math + Arts: Geometry in Dance
In this lesson, students observe symmetry, geometric shapes, and angles in two Early American dances, and then choreograph their own dance with symmetrical figures. Media and teaching materials are included.
Alabama Learning Exchange
Alex: Origami Geometry
Origami (ori-folding, kami-paper) is the traditional Japanese art of folding paper. Students will discover relationships between shapes as they are actively engaged in this hands on geometry lesson to learn basic geometric shapes, their...
Alabama Learning Exchange
Alex: Investigation of Special Segments of Triangles
This lesson will enable students to investigate three special segments of triangles in a very concrete way. The students will fold paper triangles to create the segments. This lesson would be a great way for students to explore the...
Other
Design Build: Exploring the Fundamental Requirements of Structural Design [Pdf]
In this lesson unit from the Science Teachers' Association of Ontario (STAO), students fold paper to explore the properties and shapes of materials that give structures their stability and strength. They record their ideas as they...
CK-12 Foundation
Ck 12: Plix: Independence vs. Dependence: Geological Stresses
[Free Registration/Login Required] An animation to illustrate the effects that different tectonic stresses have on rocks. Also included on the site is a short quiz over tension and compression.
The Math League
The Math League: Similar Figures
This tutorial explains what similar figures are in geometry and provides examples.
Other
Teach Net: Brain Binders
Brain binders are great teacher sources for problem solving and critical thinking with geometry. Students fold sheets of paper to create solid colors on each side. Various levels are included starting with two folds through five folds.
PBS
Pbs Learning Media: Math + Arts: Geometric Quilts
In this lesson, students will create a class quilt of nine patch paper quilt blocks using geometry.
Texas Instruments
Texas Instruments: Triangulation Problem
In this Computer Algebra System (CAS) activity, students use 'landscape' paper and fold the top left corner of the page so that it just touches the bottom of the page. They calculate the area of the triangle formed by the bottom left...