U.S. National Standards
N.3. Geometry (NCTM)
3.1. Analyze characteristics and properties of two- and three-dimensional geometric shapes and develop mathematical arguments about geometric relationships.
3.1.1. Identify, compare, and analyze attributes of two- and three-dimensional shapes and develop vocabulary to describe the attributes.
3.4. Use visualization, spatial reasoning, and geometric modeling to solve problems.
3.4.5. Use geometric models to solve problems in other areas of mathematics, such as number and measurement.