Jenny,
My GF daughter struggled with reading and it drove her up the wall and her daughter felt the tension. I told her she needs to be patient and find something that she likes to do and then find a book for it. Now, I do not have children but I know that if something is hard one needs to ease that person into it. So many children take time to develop in areas that others excel (girls faster than boys). Also, the learning space such as school is not always the right place for other kids are cruel (teasing, bullying) and the teacher may not want to take the time when there are a zillion other kids in the classroom.