Outburst
Divide the class into two or more equal teams. Provide each team with paper and pencil. Instruct the teams that they will be competing to brainstorm and write down as many words starting with a certain letter as they can in 30 seconds. Repeat with different letters (try "harder" letters such as "Q" or "Z") to find the winner of two out of three.
Heads or Tails
Students stand up and place their hands on their heads or hips to indicate how they think a coin toss will wind up. The teacher flips a coin and if it lands heads up, those students with hands on their hips (or "tails") must sit down. Continue playing until one student remains.
Telephone Pictionary
Each person in the group gets a pencil and a piece of paper. Each person thinks of a simple sentence and writes it on the top piece of paper. Then each player passes her stack of paper with the sentence on top to the person on her left. That person must then move the top paper to the back of the stack and draw a picture on the second piece of paper to illustrate the sentence. The stack is passed again, with the next player writing a simple sentence based on the drawing he sees. Finally, each person shares how her sentence changed as it went around the circle.
Write for Laughs
To start, one person writes a silly sentence, then passes the paper to the second person. The second person folds the paper to hide the first sentence, writes a second sentence and passes the paper to the third person. This continues around the circle until the last player, who writes an "ending" to the story with only the previous sentence to go from.
Bizz Buzz
One student goes first and says the number "one." Play continues around the circle with each player saying the subsequent number. The twist is that any number divisible by three is replaced by the word "bizz " and any number divisible by five is replaced by the word "buzz." Numbers divisible by both three and five become "bizz-buzz." When a player says "bizz-buzz," direction of play is reversed. Any player who makes a mistake is out and play starts over.