Pupil really struggling with retention Options

[RoseRodent]

I have a violin pupil in her last primary year who is a total beginner who started in January. She is getting on OK with remembering the names of note types and how many beats they are worth, but she really, really struggles to remember which notes are which on the stave and where they are on the violin. She does practice, she loves to play and plays for her relatives, but several months in she still really struggles to remember which string is which. I've tried doing some more aural repetition types of work with her as her ear is stronger than her visuals, but any suggestions for moving things forward with the notation side of things, and knowing what notes she's actually playing? Is there anything she can be doing during her daily practice that might help her remember and retain what's what? I may ask her to play it through saying the notes out loud once she has a something fluent, but just now I think that would put her off. I'm pulling material from everywhere because she's still struggling with using only two open strings.