Common Core Alignment:.

3.G.1:

Geometry

Reason With Shapes And Their Attributes.

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.

4.G.1:

Geometry

Draw And Identify Lines And Angles, And Classify Shapes By Properties Of Their Lines And Angles.

Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.

4.G.2:

Geometry

Draw And Identify Lines And Angles, And Classify Shapes By Properties Of Their Lines And Angles.

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.

5.G.4:

Geometry

Classify Two-Dimensional Figures Into Categories Based On Their Properties.

Classify two-dimensional figures in a hierarchy based on properties.