Stop! game

In this game the teacher or a classmate chooses a random letter and students (in pairs or in groups) must write as fast as they can a word for each category that starts with that letter. For example: for letter C, food: chocolate. When they have finished they must raise their hand and say stop! aloud so that everybody stops writing. Then we start counting the points. 10 points per each word that nobody else has and 5 per word that someone else has. The winner is the pair/team with the highest score. Enjoy!