I begin this day with a quick warm up involving placing cards in the right parts of the Venn diagram. Then, I ask them a few questions about it, just as review of the notation.
The last one I stop myself and ask the students how to even say that and inevitably someone says not A or B, to which I have to make a point.
After everyone is okay with the basic of the Venn diagram I preface the next activity with "Don't tell you parents we're playing this but does anyone recognize this game?
Then I start taking bets. I draw two student names at random, inform them what they could bet on and place their bets. Before I spin we have to model the situation with a Venn diagram and talk about intersections, unions, and compliments.
Here is the graphic organizer
