This unit will begin with introduction to basic vocabulary in class, then intersecting lines which creates vertical angles and linear pairs.  Next, we move to parallel lines cut by a transversal and all angle relationships created.  Next Quadrilateral family and characteristics of each item.  Which brings us back to parallel lines cut by 2 parallel transversals.  We end the unit with the Triangle-Sum property, isosceles triangle property, and exterior angles of triangles.