Grade 3 - Shape and Space
Standard 3.SS.5 - Given the perimeter of a figure, calculate the missing side.
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. • Achievement Indicators: - 3SS5.1 Measure and record the perimeter of a given regular shape, and explain the strategy used. - 3SS5.2 Measure and record the perimeter of a given irregular shape, and explain the strategy used. - 3SS5.3 Construct more than one shape for a given perimeter (cm, m). - 3SS5.4 Estimate the perimeter of a given shape (cm, m), using personal referents.