Draw and identify lines and angles, and classify shapes by properties of their lines and angles. 4.G.1 Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures. Tasks 4.G.1 Task 1: Moving Around Town 4.G.1 Task 2: Making Roads

4.G.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. Tasks 4.G.2 Task 1: Is it Possible? 4.G.2 Task 2: Sorting Shapes

4.G.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. Tasks 4.G.3 Task 1: The Rest of the Shapes? 4.G.3 Task 2: Symmetrical Letters

## Geometry

Draw and identify lines and angles, and classify shapes by properties of their lines and angles.4.G.1Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.Tasks4.G.1 Task 1: Moving Around Town

4.G.1 Task 2: Making Roads

4.G.2Classify 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.Tasks4.G.2 Task 1: Is it Possible?

4.G.2 Task 2: Sorting Shapes

4.G.3Recognize 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.Tasks4.G.3 Task 1: The Rest of the Shapes?

4.G.3 Task 2: Symmetrical Letters