What Is A Dance?

Girl in grade 10.  Until recently, she has had a very uncommunicative kind of personality, but she is slowly coming out of her shell.  Today, we were working on a dance - and she was playing it like a girl.  Throughout this conversation I was drinking a cup of tea, and her responses were very prompt and sudden.

Me: What sort of piece is this? [sip]
Girl: Dance.
Me: Er - yes.  How are you- actually, different question.  What is a dance? [sip]
Girl: People jumping around. [I nearly sprayed her with tea]
Me: Okay.  Yes.  People jumping around.  How are you going to make it easy for them to land their feet at the right time?
Girl: Accent.  Start of bars.
Me: Yes.  So, do that!