Use the links or review/practice
https://www.khanacademy.org/math/basic-geo/basic-geo-angles/basic-geo-angle-relationships/v/angles-formed-by-parallel-lines-and-transversals
https://www.youtube.com/watch?v=Wz9MSS34KCU
https://www.mathsisfun.com/geometry/parallel-lines.html
http://www.mathwarehouse.com/geometry/angle/parallel-lines-cut-transversal.php
http://www.regentsprep.org/regents/math/geometry/gp8/lparallel.htm
HW: Complete WS Parallel Lines Classwork (both sides) & WS 3.1 - 3.2 Exit Slip