Classify two-dimensional figures into categories based on their properties.
Geometry
Classify two-dimensional figures into categories based on their properties.
Geometry
Resources cannot be aligned to this standard, browse sub-standards to find lessons.
Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category.
Classify two-dimensional figures in a hierarchy based on properties.
Analyze, compare, create, and compose shapes.
Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.
Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.
Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/“corners”) and other attributes (e.g., having sides of equal length).
Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.
Classify two-dimensional figures into categories based on their properties.
Classify two-dimensional figures into categories based on their properties.
Classify two-dimensional figures into categories based on their properties.