I have a ds10 who is HG and dyslexic. He's a good reader, but like your dd, writing is extremely difficult for him. First, I'm impressed your school is even addressing the writing problem. My son has accommodations, but no remediation, so we're hiring a tutor this year in writing.

I think my strategy at the meeting would be to ask her directly how she's working with your dd on writing and follow up by asking how that fits in with the research-based program. Ask what the plan is to meet the measurable goals. Tell her you'll want a check-in every 6 weeks. Basically, put her on notice that you're an involved parent who knows what to ask for. I would also try to work in the fact that you know "best practices" are to be used in the "research-based" program, and you're very interested in making sure that happens for your dd.

I would also make sure to bring cinnamon rolls to the meeting, with enough extra to go into the teacher's lounge after your meeting!

Good luck!