Pair/Impair

Maybe this exists somewhere else; I can't imagine I'm the first to think of this. But I made up/unknowingly discovered a new super fun brain break today: pair/impair (even/odd). This can be a very similar set-up as rock, paper, scissors; you can have students do it in pairs, but I set it up today so the kids "played against" me in order to save some time. Once we established what pair and impair mean, I tell the kids that I only like even numbers, I can't stand odd numbers. (This is true, yet another example of how my weird brain works!)  started it off the same way as rock, paper, scissors, hitting my fist against my palm and saying Un, deux, trois, voilà. On voilà, I put my hand out with 0, 1, 2, 3, 4, or 5 fingers out. My partner does the same at the same time. We add up our fingers; if the total is even, I "win" since I had told the kids I like even numbers. If the total is odd, my partner wins. So students have to decide who's even and who's odd before they start to play. 
So when I did this with me "against" the class, some kids "beat" me when the total of our fingers was odd while I "beat" others when we had an even number. It was fun! Let me know if you try it, or if you have variations.

The explanation/review of the even/odd brain break. (Student explanation of one round at 2:10)

One round of the brain break with students.

(Note: as one class of sixth graders in line waiting for me to dismiss them, two boys started playing the game while they waited for their classmates! Improvisation FTW!!