A good game for large classes and for reviewing vocabulary lessons.
Prepare a list of review vocabulary words. Write each word on two small pieces of paper. That means writing the word twice, once on each paper. Organize the pieces like bundles, 2 bundles, 2 sets of identical words. Divide the class into 2 teams. get them to make creative team names. Distribute each list of words to both teams. every student on each team should have a paper.  Both teams have the same words. When you call a word, 2 students should stand up, one from each team. The students must then run to the blackboard and race to write a sentence using their word. The winner is the one with a correct and clearly written sentence.

This is always a hit with kids. For more advanced students, use tougher words.