This presentation is a basic review of how probability works. It includes examples citing which events are Certain or Impossible. In addition, it shows the 0 - 1 number scale and exactly how it is translated into understandable language for the student.
There is also a practice game at the end of the presentation, so that your students can begin to understand the difference between "chance and choice". There are variations on this game included, which involves few materials. So students fully understand this concept, there are questions that follow the game that provide more insight to the concepts that were practiced during the game.
My 6th graders thoroughly enjoyed this power point, and begged to play this game even after the unit was completed.