Grade 6 - Shape and Space
Standard 6.SS.5 - Find the angle sum of interior angles of polygons.
Included Skills: Geometry
Describe and compare the sides and angles of regular and irregular polygons. • Achievement Indicators - Sort a given set of 2-D shapes into polygons and non-polygons, and explain the sorting rule. - Demonstrate congruence (sides to sides and angles to angles) in a regular polygon by superimposing. - Demonstrate congruence (sides to sides and angles to angles) in a regular polygon by measuring. - Demonstrate that the sides of a regular polygon are of the same length and that the angles of a regular polygon are of the same measure. - Sort a given set of polygons as regular or irregular and justify the sorting. - Identify and describe regular and irregular polygons in the environment.