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Common Core Standards

Classify 2-Dimensional Figures

Grade: 4th Grade

Math.4.G.1 or 4.G.A.1


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


Math.4.G.2 or 4.G.A.2


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.

4th Grade Math - Classify 2-Dimensional Figures Lesson
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