Even though the top of this page says, "A forum about Neopets,
not Powerpoint, and there aren't any chicken related boards... yet", we're a very helpful lot here at PPT... Try looking at this tutorial:
http://www.internet4classrooms.com/msword_equation.htmNote: It is written for MS Word, but works exactly the same way for MS Powerpoint.
I followed the tutorial using Powerpoint and it worked like a charm.
Good Luck!