She is blessed to have you seeking answers on  her behalf.  I realize that this post is several months old but I have some input for the future.  If at all possible I would allow struggling readers to utilize a program like Raz-Kids where they can hear a story first, then read and answer comprehension questions after independent reading.  The books begin at aa and progress through the levels and there is high interest because there is often animation, inflection by the reader and special text features to hold interest and Raz-Kids just feels like something special because it utilizes the computer which is motivating to students.  If this is not a possibility, I have found that allowing a friend  read with a struggling student and work on activities with them is more motivating at this age than working for the full 3 hours with a teacher.   Test the student on sight words, make up cards for what she does not know, perhaps  doing a version of a four-square with a picture, definition and synonym of more advanced words that occur in her reading, modeling reading by you or a peer, having her read from a book she chooses, then having her choose a book that she has already read and having a frank talk with parents about what she needs to do to move to the next level is needed.  Another year in fourth grade would not hurt her as she will likely keep falling farther and farther behind as she moves through school.  She also needs remedial reading 5 days a week as her inability to read properly will affect every other subject.  Her frustrational level will continue to increase if she keeps getting moved along.