Grade 5 - Geometry and Spatial Sense
Standard 5.GSS.1 - Count the vertices of three dimensional shapes.
Included Skills: Geometry
Geometric Properties • distinguish among polygons, regular polygons, and other two-dimensional shapes; • distinguish among prisms, right prisms, pyramids, and other three-dimensional figures; • identify and classify acute, right, obtuse, and straight angles; • measure and construct angles up to 90�, using a protractor; • identify triangles (i.e., acute, right, obtuse, scalene, isosceles, equilateral), and classify them according to angle and side properties; • construct triangles, using a variety of tools (e.g., protractor, compass, dynamic geometry software), given acute or right angles and side measurements (Sample problem: Use a protractor, ruler, and pencil to construct a scalene triangle with a 30� angle and a side measuring 12 cm.).