NC.4.G.1

Draw and identify points, lines, line segments, rays, angles, parallel and perpendicular lines.

Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement. 

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. 

Line segments and rays are sets of points that describe parts of lines, shapes and solids. 

Angles are formed by two intersecting lines or by rays with a common endpoint.

A point is represented by a dot (.) and is used to tell an exact location in space. It does not have any length, width, or height. 

Angles are classified by size.  

Line segments and rays are sets of points that describe parts of lines, shapes and solids. 

Two-dimensional or plane shapes have many properties that make them different from one another. 

Polygons can be described and classified by their sides and angles.