This two-part example from Illuminations describes activities using interactive geoboards to help students identify simple geometric shapes, describe their properties, and develop spatial sense. This first part, Making Triangles, focuses attention on the... (Learn more)
In this lesson, one of a six-part unit from Illuminations titled “Geometry in the World of Art,” students identify and create lines of symmetry and congruent figures. They explore these concepts with paper cutting and modeling on a geoboard. (Learn more)