This month we'll be doing a coding dojo, which is a group coding exercise.
Two people code with the computer hooked up to the big screen so everyone can watch. One person is the driver, the other is the co-pilot. They start working on the problem, while everyone else watches. Any one in the audience can ask questions and offer advice, but the driver and co-pilot are in charge. After a agreed number of minutes the driver returns to the audience, the co-pilot becomes the driver and one of the audience step up to become co-pilot.
We'll be working on this vending machine coding exercise.