Nebraska Core Academic Content Standards
NE.MA.4.3. 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.4.3.1. Characteristics: Students will identify and describe geometric characteristics and create two- and three-dimensional shapes.
MA.4.3.1.d. Classify two-dimensional shapes based on the presence or absence of parallel and perpendicular lines, or the presence or absence of specific angles.