CNN News Clip

"Sarah, do you remember the old song `Ode to Billy Joe'? I just saw the movie on my VCR and it was great. I finally figured out what Billy Joe threw off the Tallahatchee Bridge," said Bob. "Oh, yeah? I'll bet you didn't!" answered Sarah. "Anyway," continued Sarah, "the movie is not faithful to the song. From the song you cannot figure out for sure what was thrown from the bridge." Is it possible to use deductive reasoning to answer this question?

In this section, Sarah and Bob will find out what is meant by deductive reasoning and how to use Venn diagrams to reach valid conclusions.