If I was you I'd reccomend an addon called Mage mana bar to help her get used to the rotations it generally tells you when you want to be burning conserving etc. Also The www.askmrrobot.com is a fantastic site which shows what enchants, gear upgrade gems you should be slotting for you spec. Generally speaking you need to burn (spam arcane blast) til 35% mana then evocate and then conserve phase 4x arcane blast then 1 arcane missles or barage if missles haven't procced also remember to keep up the fire orb at all times and use mana gems for extra sp etc oh and also arcane power everytime it is available. Good luck :-)