In "Double Down," card auto-shufflers in casinos are discussed. These devices can be used with more than one deck of cards, and offer casinos a method for randomizing the cards that are dealt, while minimizing any opportunity for the person dealing the cards to cheat. However, there are ways to manually deal cards in a predetermined manner.
Before the Activity
Download the attached PDF and look over the Teacher Page.
During the Activity
Discuss the materials from the Student Page with your class. Share the attached SHUFFLE calculator program for students to check their work.
After the Activity
Encourage students to explore web sites and questions from the Extensions page.