Grade 3 - Shape and Space
Standard 3.SS.5 - Find the perimeter of a complex figure.
Included Skills: Geometry
Demonstrate an understanding of perimeter of regular and irregular shapes by: • estimating perimeter, using referents for cm or m. • measuring and recording perimeter (cm, m). • constructing different shapes for a given perimeter (cm, m) to demonstrate that many shapes are possible for a perimeter. • Measure and record the perimeter of a given regular shape, and explain the strategy used. • Measure and record the perimeter of a given irregular shape, and explain the strategy used. • Construct a shape for a given perimeter (cm, m). • Construct or draw more than one shape for a given perimeter. • Estimate the perimeter of a given shape (cm, m), using personal referents.