Union and Intersections and Venn Diagrams

In this math lesson I define the Union and Intersection of Sets and set up Venn Diagrams to answer these questions. Examples at 9:40 12:08 25:00 Check out http://www.ProfRobBob.com/, there you will find my lessons organized by class/subject and then by topics within each class. Find free review test, useful notes and more at http://www.mathplane.com/ If you'd like to make a donation to support my efforts look for the "Tip the Teacher" button on my channel's homepage    / profrobbob