I've made music for years, but I'm new to the whole EDM thing. Not real sure about turntablism/DJing. However, here is a great article that will get her thinking in the right direction:
https://www.udemy.com/blog/how-to-become-a-dj/
She can also learn a great deal from YouTube tutorials. There's good info there and it's all free. I've learned a great deal from it.
Tell her to join the the forums over at
http://www.futureproducers.com/forums/
There are lots of Producers and DJ's there of all skill levels she can dialogue with. If she has questions about techniques, software, etc ... it's always a good place to start.
Lastly, have her learn music theory even if she's not going to be "that kind" of producer/beatmaker. It will help her immensely. She'll be able to do things creatively and easily that she would not have thought of without it. Again, she can learn this on YouTube. There are also great apps for the iPad/iPhone that will teach her in no time. I recommend Musicopoulos. It's very easy to learn and will put her light years ahead of common beatmakers.
Hope that helps.