Danica McKellar has a book series. The first book is called Math Doesn't Suck. It teaches girls to not hate math and helps them understand math more! the book website is below:
http://www.mathdoesntsuck.com/

Thank you so much Kelseylbeck! Thank you for the Danica McKellar suggestion; I just bought it on Amazon thanks to you. I saw her algebra book at Barnes & Noble about 6 months ago and loved it (for me), but I didn't know she had a math book for middle school math.

I think she needs to see what math is used for in life.
If she wants some thing how long will it take to get it at some rate.
Teach what math symbols we use Western Arabec 3 is a place holder. Three cats. Three apples, one key phrase is 5 plus 3 IS 8 and will be each time. I am one who also had a great difficulties with math. I felt I had to add each time. I hope you see the 5 plus 3 IS 8 and always will be. Work with the basics not to the class work it will come when the basics are under stood. There has to be a need to want.

I failed maths consistently as a child because I didn't get the logic behind it or see why it made sense to take things on trust.  Not taking the very basics on board meant that as soon as any maths problem was put in front of me I felt panic and my mind went blank.  The pressure from everyone else and the teacher to "do these easy problems" made it worse. 

Now I am in my 40s and revising my maths from the website, I am going over the basics and realising that it's easier as an adult to see maths as a language, a new window into the world, that I can learn, if I take my time, don't compare myself with others and most of all, trust that the correct answer makes sense in this new language, even when it doesn't make sense to me from where I start out from.  It's more like a game. 

I am 36yr old now and using khan academy to brush up on subjects I wasn`t so good at in school and I sucked at maths, I came to khan academy and iv done complicated maths sums without using a calculator if I can help it, and im surprised what I can do now, ever heard of lie algebra yes I din`t even know what it was until now a branch of algebra that exists https://en.wikipedia.org/wiki/Lie_algebra, Tensor calculus, and loads of free books and videos and notes, https://cosmolearning.org/video-lectures/parabolas-part-3-focus-directrix/ from basics to advance, gives loads of math text books, and I use you-tube loads of info on any stuff and there are free exam papers to practice of all sorts.