I’m just starting it with my 7th grade (12 year old) son. He is a fairly strong writer already and ok with grammar as well. My ds10 who has dysgraphic/dyslexic tendancies (I’ve not had him tested but I know he’s on the spectrum) would not be ready for Jump In. I just need him to continue working on getting things down on paper, making sentences, etc. Jump In is a way to start organizing their writing for reports, etc, while my ds10 really has nothing to organize yet. Does that make sense? He’s simply not ready. I don’t know that he’ll be ready in 7th grade. I’d be really happy if he could do it well in 8th or 9th, just knowing his skill level now.