This was an excellent way to start off our unit on graphing but can be used for basically any topic you would like.
Students formed into a circle and the only material I needed was a soft toss ball. I started by tossing the ball to a random student and they had three seconds to share one thing they knew about graphs. After stating their fact, they toss the ball to the next student and so on. If a student could not state a fact within the three seconds, they sat down. We continued to toss the ball until there were only two students standing up.
Such a simple concept but the students loved it. As you know, their competitive side often comes out in games in the classroom. We must of come up with over thirty different facts about graphing in this game.
Next time we play, I will use this to form a class K-W-L chart for the unit. Rather than doing a brainstorm session on the carpet to fill in the "What I Know" section, we will play the game and have a student (or myself) record all the facts stated by the students to then be placed in that section of the K-W-L chart.
This is also a wonderful EAL strategy to use in a maths classroom. The best way to help students develop their knowledge of the English language is through oral language. We often struggle or forget to focus on vocabulary in maths, thus this game allows students to verbally express their ideas and have exposure to vocabulary specific to the unit in focus.
Please let me know how you can use this and/or modify it in your classrooms.