Midcontinent Research for Education and Learning
Home

Browse

Search

Purpose

History

Process

Acknowledgment

Reference
Common Core Mathematics 35
Cluster
Draw and identify lines and angles, and classify shapes by properties of their lines and angles.
Grade 4
4.G.1.
Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in twodimensional figures.
4.G.2.
Classify twodimensional 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.
4.G.3.
Recognize a line of symmetry for a twodimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify linesymmetric figures and draw lines of symmetry.