Many students in geometry and even beyond struggle to identify different types of quadrilaterals. This "cheat sheet" will clear up misunderstandings for those who are not completely clear on the difference of the definitions of a quadrilateral, rectangle, square, parallelogram, rhombus, and trapezoid, all color coded to help the visual aspect. Even if you can only print black and white, the different shades of grey will be helpful. Students can use markers or high lighters to make the different