at least at first. Don't get bogged down in the minutia at the beginning. :-)

I'd start with hydrogen and the light elements and go through the main sequence stuff. Stellar evolution is driven by the battle between [link|http://zebu.uoregon.edu/textbook/se.html|pressure and gravity]. Fusion of elements give off a lot of energy (at least up to iron) - it's not important to understand the reaction products and how many MeV each reaction yields to have an appreciation of the subject. As the fuel runs out, gravity begins to gain the upper hand. Etc.

[link|http://theory.uwinnipeg.ca/mod_tech/node206.html|This] section of a general introductory modern physics course seems to be pretty good. It gives enough detail to inspire further reading if you're interested, but not so much that she'll be overwhelmed (I don't think).

HTH. Have fun!

Cheers,
Scott.