Geometry
draw points, lines, line segments, rays, angles (right , acute , obtuse ) and perpendicular and parallel lines and identify these in two-dimensional figures. (CCSS Math.4.G.1)
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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. (CCSS Math.4.G.2)
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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. (CCSS Math.4.G.3)
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