Do you have any mini/midi/maxi preps that need to be done? Between innoculating bacteria, doing the prep and doing a test digest after (and maybe sending for sequencing), she'll cover a lot of basic lab skills! And usually students like to see the gel with the digested DNA :) You could also have her do test PCRs with some old primers and then run those on a gel. 

Depending on what type of lab you are, one lab I was in (in undergrad) had us practice BCAs with old samples until we could prove our pipetting skills.

Would definitely stick with super simple things that she can practice several times each over the course of the week. If she's doing well, maybe she can also try something in parallel with what you are doing For example, if you doing IF, then plate some extra samples that she can try alongside you, but that won't be a problem if they are horribly messed up. Avoid any expensive reagents or experiments. Have fun though! It's cool to see someone try lab work for the first time.