Common Core Alignment:.

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.