Standard Alignments:

TEKS Math: K.6.A

(A) Identify two-dimensional shapes, including circles, triangles, rectangles, and squares as special rectangles

CCSS Math: K.G.4

K.G.4 Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/"corners") and other attributes (e.g., having sides of equal length).