She got an F on the last reading test which concerned me. ... DD and one of her friends both were in this group. The teacher had spent alot of time in class going over the unit (propaganda, bias, etc. as it relates to non-fiction, advanced reading) and the whole lesson flew over DD's head. Her teacher chalked it up to socializing during reading and has since moved her. I had to work with her for a week in order to get her up to speed. She kept saying she didn't understand. She took the test twice and passed the second time once I worked with her. Granted, she had never taken a written test like that before.
Have you talked to the teacher and/or your DD? Is there any particular reason she didn't know it? It seems to be a widespread problem, so likely not. Could you discuss your concerns with the school? Maybe it's significant, maybe not, and likewise with the MAP.
I feel once a child starts middle school the die is cast on placement without massive work outside of school. Kids in the low math classes don't suddenly jump to the high classes. I feel the same with other subjects.
Once again -- it's very easy for other parents, schools, etc. to distort this perception...could you talk to the school, principal, maybe your other DD's current middle school teachers about it? IMO, it would be crazy to put such a smart child, who has been grade skipped as well, into remedial classes -- if there was a problem like that, it seems the school would contact you about it.
Overall, I think it would be in order to schedule a meeting with the teacher, principal, etc. to "discuss and check up on DD's skip". You could address these concerns -- hopefully WITH your DH -- and move forward based on whether the information presented is comforting or alarming.
Best of luck.
