I was about that age when my mom told me I wasnt speaking right and had to see a therapist. Until that point I had no idea. Maybe I didn't start until after first grade, as I would love show and tell and had zero fear of public speaking in fact I loved it. I was very upset and felt there was something wrong with me. When I became aware of it, that's when it got really bad and frustrating. Therapy did help, but it never was a cure. I remember all my family and aunts and cousins telling me how oh I'd outgrow my stutter. I never did and never believed I would, and felt bad that I couldn't. So my only suggestion is dont tell her she will just outgrow this, hopefully she will, but understand she might not, and that's fine too.