This files contains printables that correlate with Common Core 4.G.A.2, as well as some helpful tips. These pages can be used as guided practice, independent practice or homework. They are also a great way to review!
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.