Choose one of the 6 options and then say what happens next when solving the equation. I used a template (with permission!) for the music from the excellent resource written by DanielBurke - check his resources out as they are top quality. The animations are little clunky, but do the job - I'm sure you could all make it look like Avatar! If you find the answers already on the slide then powerpoint has messed up the animations. Just contact me and I can send you my version.