My 2E (profoundly LD) DD's neuropsych eval the summer between 1st and 2nd grades made clear that high level audio books were an absolute necessity so at the public she would take 2 "enrichment/anxiety" breaks a day to listen to middle school/high school level books. There was no curriculum and no one ever discussed the books with her. She would just listen to a book like "Great Expectations" and then skip down the hall to her 2nd grade classroom and work on decoding her K/1st level reader and answer comprehension questions like "can you identify the beginning, middle and end of the story." It wasn't a great solution but at least she got to listen to the books and over dinner we would discuss Miss Havisham's motivation for inviting Pip over...

In 3rd grade she started OOD at a special Ed school. They placed her in an 8th grade reading comprehension class using an audio version of the text. (The school goes to 12th grade but we didn't really want our 8 year old in a high school classroom so happily took the placement.) DD "didn't want the other kids to feel bad" so never really gave full answers during discussions. She would give a partial answer and then see if anyone added to it. They rarely did so she didn't either. She was so happy to have the opportunity for discussion it took most of the year to get her to admit that she found the class "painfully slow".

This year we tried 2 days a week in the 8th grade group and 3 days a week doing research based on topics from the readings. A) no one really wanted a 9 year old in a high school class and B) no one at school realized she had hit the ceiling on their placement testing and 8th grade wasn't really the appropriate level for her. A couple of months ago she was listening to "Lord of the Flies" on her own so they decided to pull her from the 8th grade group and have her work on a 9th/10th grade curriculum for that book instead. She now works 1-1 with a teacher. More interesting but she still misses the give and take of a classroom discussion.

At our IEP meeting next month I am going to ask that she either be placed in a high school class or that they have 1 or 2 high school students join her 1-1 group. I am guessing the latter is more likely.

I'm not sure how much of this will apply to your situation but hopefully it will give your some ideas. A friend with another 2E kid who is radically subject excelerated tells me that he loves to show off to the bigger kids so YMMV depending on your child's temperament.