This is an 137 slide PPT that goes through an entire unit on parallel lines and transversals. I highly suggest you slow this unit down and break up the lessons with a reinforcement day between each one. It has 4 completely animated lessons including examples on the following topics...
Identify the relationships between two lines or two planes
Name angle pairs formed by parallel lines and transversals
Use theorems to determine the relationships between specific pairs of angles.
Use Algebra to find angle measurement.
Find slopes of lines.
Use slope to identify parallel and perpendicular lines.
Recognize angle pairs that occur with parallel lines.
Prove that two lines are parallel.