Standard for Grades 3–5
characteristics and properties of two- and three-dimensional
geometric shapes and develop mathematical arguments
about geometric relationships
• identify, compare, and analyze attributes of two- and three-dimensional
shapes and develop vocabulary to describe the attributes;
• classify two- and three-dimensional shapes according to their properties
and develop definitions of classes of shapes such as triangles and pyramids;
visualization, spatial reasoning, and geometric
modeling to solve problems
• build and draw geometric objects;
these Websites and complete the activities.
Patterns for Solid Figures
the squares that fold into cubes.
Interactive module to learn the properties of shapes..
triangles using the online geoboard.
Math Learning Center
polygons using the online geoboard.