OAS 2.GM.1.3 Worksheets
OAS 2.GM.1.3 (Oklahoma, 2nd Grade): "Compose and decompose two-dimensional shapes using triangles, squares, hexagons, trapezoids, and rhombi." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.