I decided to do a search for free apps that cover probability. I found one that is geared for 6th grade, has both a free and paid version and has a nice review of the basics. Its 6th Grade Learning Games for Math and Language by Kevin Bradford. When you download the app, there are only 3 games unlocked. If you want all 10, you need to pay $1.99 to unlock all the games.
The second game deals with probability and statistics. The idea behind the game is that you answer 5 questions to get the rocks you will use to knock down the structure to get points. Each rock represents a chance to knock down the structure and gain points.
The questions themselves deal with the probability of a certain color in a spinner, median, mode, and range. Basics that most students need to learn and know for mathematics.
I will probably use this in my pre-algebra class as a way to cover some of the probability without having to actually take time to teach it. This is a good way for students to review some of the basics so when I do teach probability, they will be ready.
Tomorrow, I"ll review the number sense game in this app.