Nebraska Core Academic Content Standards
NE.MA.1.3. GEOMETRY: Students will communicate geometric concepts and measurement concepts using multiple representations to reason, solve problems, and make connections within mathematics and across disciplines.
MA.1.3.1. Characteristics: Students will identify and describe geometric characteristics and create two- and three-dimensional shapes.
MA.1.3.1.a. Determine defining and non-defining attributes of two-dimensional shapes; build and draw shapes that match the given definition.