LMNOP
I was doing the reverse with DS today - he was doing the Montessori crossword puzzle app - the kid reads at a very high level and has a huge vocab but was getting stuck on how to spell boat and tie so I was helping him sound out but then said picture the word in your head so you know what comes next and I couldn't tell if he could do it or not but maybe that's what your DD is doing to remember it. Pretty interesting.

DeHe