Bingo is such an obvious game I hardly think to mention it. But of course it can be loads of fun and used for teaching numbers or if you don't have an official game set, simply cut up some paper, make the grid and have students write in "their choice" of the study vocabulary. I did it for my "Very Good Words" Lessons many times. Take note, I'm posting my entire ESL Music Video System for free right here! Doing times of a clock is a great idea too, like 3:15, or "quarter to four," as they get more advanced.