I Have, Who Has is a great game to play to introduce or review concepts. The rules are simple:
1. Cut out the 28 cards
2. Give a card to each student. Students can take more than one card, based on how many students are playing
3. The student with the START card goes first. He reads his card, and then displays it or stands up to start a line. The student who has the next card does the same, until all cards have been played
4. The game stops when THE END is read
Looking for something a little more challenging for your higher-leveled kids? Check out the fill-in-the-blank version in my store where students have to tell why each number is odd or even.