Rhode Island Standards
RI.M:G&M:5. NECAP - Grade Level Expectation: Geometry and Measurement .
M:G&M:5:6. Demonstrates conceptual understanding of perimeter of polygons, and the area of rectangles or right triangles through models, manipulatives, or formulas, the area of polygons or irregular figures on grids, and volume of rectangular prisms (cubes) using a variety of models, manipulatives, or formulas. Expresses all measures using appropriate units. (State)