Common Core Standards

Mathematics - Common Core Standards

Fourth Grade

Geometry

Draw and identify lines and angles, and classify shapes by properties of their lines and angles.

CCSS.Math.Content.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.

	Parallel and Perpendicular Lines
	Label Lines, Segments and Rays

CCSS.Math.Content.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.

	Identify Right Triangles
	Quadrilateral Comparison Chart
	Identify Types of Angles
	Sort Shapes By Angle Type

CCSS.Math.Content.4.G.A.3 Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry.

	Symmetric Hearts
	Symmetric Arrows
	Lines of Symmetry
	Symmetric Figures
	Draw The Other Half

The Common Core State Standards are © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved. For more information about the Common Core State Standards, visit their website at http://www.corestandards.org

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