I invented this game for "I think we should" and "I think we shouldn't" but could be fit to any lesson that can have at least 2 different set dialogues. (I like apples. I don't like oranges. I like oranges. I don't like apples. etc)
Rules.
Divide the students into teams. (preferably 2 teams)
Give each team a name and piece of paper. The paper should have one team mark on one side and the other on the other side. Any two symbols will do. (Example. one side has a big M for McDonald's the other has KFC for Kentucky fried chicken.) Either you can make the marks ahead of time or the students can draw the marks themselves. I prefer to have the students draw them, but it does take more time. While playing, each student holds his card out in front of him so it's easily visible.
Explain and practice each teams' grammar. (it's best to act this out with the JTE)
At the end of the dialogue, both play janken (rock, paper, scissors).
The loser turns his paper over showing that he is now a part of the other team.
Both players go look for new opponents from the other team.
Play continues until there is only 1 team or time runs out.
Count how many members each team has now. The team with the most members at the end, wins. (You can do multiple rounds)
NOTE: you will probably have to remind the students to say their grammar and not just play janken and switch teams.
I would really like to use this idea, but I am a bit lost on the execution of it. I actually prepared a bunch of cards with zombies one one side and plants on the other (from Plants vs. Zombies). My SHS classes are low-level and typically quite small. Do you think you could explain a bit with an example of how this would play out? For example, each player on a team has a card, correct? Also, do students show other players what team they are on? Thanks!
So, for example, at English camp, one group was team astronaut and the other was team alien. each card has an astronaut and an alien on opposite sides. the children would look for someone on the other team. the grammar was simple. the student on team astronaut said, "I am an astronaut" and the Alien replies, "I am an alien". The students would play janken. For the example let's say the alien team member lost. The alien would turn the card over and become a part of team astronaut and then both students would look for someone on the alien team to repeat the exercise. after 10 minutes I said, "Time's up" and then I asked "who's an astronaut? Raise your hand." and counted how many were on that team currently. I then said, "Who's an alien? raise your hand." and did likewise. If I recall we had 22 astronauts and 17 aliens. So, Astronauts won.