Not sure when you plan to start her on programming but I just started my girls on CodeAcademy (I'm not affiliated) because its super easy, teaches by doing, and

Not sure when you plan to start her on programming but I just started my girls on CodeAcademy (I'm not affiliated) because its super easy, teaches by doing, and there's gamification/rep system in place. I'm following along with them. Personally, I wouldn't want to choose a language for them to learn, rather, get the principles/fundamentals of coding and let them explore languages from there.