U.S. National Standards
N.2. Algebra (NCTM)
2.1. Understand patterns, relations, and functions.
2.1.1. Sort, classify, and order objects by size, number, and other properties.
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. Recognize, name, build, draw, compare, and sort two- and three-dimensional shapes.
3.1.2. Describe attributes and parts of two- and three-dimensional shapes.
3.4. Use visualization, spatial reasoning, and geometric modeling to solve problems.
3.4.4. Recognize geometric shapes and structures in the environment and specify their location.