Curated OER
Great Shapes Alive!
Compare two- and three-dimensional shapes and construct three dimensional models from two-dimensional shapes. Diagram the shapes and reflect about the process in writing.
Curated OER
Marshmallow Geometry
Third graders create 2D and 3D shapes using marshmallows and toothpicks. In this geometry instructional activity, 3rd graders create their shapes and document the number of faces, edges, corners, angles, and sides. They share one shape...