This game is very popular among students all over the world. There are two versions:
In the easy version, draw five columns on the blackboard. Each student comes to the front and has to write a word on each column starting with the letter that the teacher decides.
In the difficult version, each column correspond to a subject (for example, clothing, fruit, animals, things in the house, etc.)
The student gets one point for each correct word (without misspellings). The student with more points wins the game.