I did some researching and found a couple excellent resources for crocheting using a chart. Here is a pdf from Redheart yarn on how to read the symbols in a crochet chart. This tutorial shows you how to read the actual chart once you know what the symbols mean.
Skirt extenders add a little length to skirts a little too short to be comfortable and add a touch of femeninity to an otherwise ordinary outfit. Hopefully these will come in handy when I get around to making my fabulous skirt extender!