I've got a big school dance coming up and I need some ideas for asking out a girl. I don't wana do something cliche like having the teacher give out a popquiz with hers being the only one that says will you go to the dance with me? and come out with flowers. But other than that i don't have any other ideas. So please help!

Honestly, I've never heard of that pop-quiz idea, so maybe it's not as cliche as you think? Also, flowers are nice, but why not just ask her directly and/or casually, as if it's just like asking her to the movies. That's all it really is anyway, just another date that happens to be bigger and better than the typical date.

... the teacher would actually do that for you?

I second >>2, just ask her directly.

ask her out~ bravely~
if she won't go with you... then you just have to face the fact that she has another guy in mind~ or maybe another occasion so she couldn't come that day...

if you fail~
ask another girl~
simple~

are you good at dancing?
it's better to think how you will dance to impress than how to ask a girl out~^^

Like the others say, simply ask her. If you were the girl, do you think you would say yes just because the guy made something original before asking you? Much better to present yourself decently and ask her to dance.