This is a game for the whole class in which students calculate the odds of something happening and wager an amount of their choosing. It includes percents, probability, higher order thinking about how much and when to wager, and a lot of fun. This game always ends in loud laughter and shenanigans! It is generally played in groups of 4, but can be adapted to smaller classes. I have played with 10 minutes left in class, as well as for a full 30 minutes.

Note: this game is adapted from a game my children played in their elementary school. I don’t know who created it originally.