Here is an activity I did last week with chance. Each student got this sheet and 2 dice. They predicted which sum they would roll the most (when adding the totals rolled on both dice) and then continued to roll until one sum reached the top.
Grab it and see what we did with the results as a class on my blog Down Under Teacher.
I'm also having a sale on all my items at both Teachers Notebook and TpT if you are looking at grabbing a bargain!