Scenes from a hat
This is a fun exercise that you can do in class. It is a more elaborate version of the exercise in pairs 'acting out a situation'. All pupils write down specific scenes (e.g. A pupil did not make their homework and gets a remark from the teacher). These can be scenes that have to be acted out alone or in pairs. Then the teacher collects all these different scenes in a hat. They pick a random scene from the hat and one or two pupils have to act it out.