Oklahoma Academic Standards
OK.5.GM. Geometry & Measurement (GM)
5.GM.2. Understand how the volume of rectangular prisms and surface area of shapes with polygonal faces are determined by the dimensions of the object and that shapes with varying dimensions can have equivalent values of surface area or volume.
5.GM.2.3. Find the perimeter of polygons and create arguments for reasonable values for the perimeter of shapes that include curves.