It's funny that I read this post today. In every class I teach there's at least one child that has a learning barrier. In the class that I manage, there are two such learners. I submitted their files today to my HOD. One child can only copy what they see perfectly. They can't understand it nor read what he's written but at least he can write. The other can't write at all. Both of them can't read or speak English or their home language. They are both 16 years old and in the sixth grade. They are 4 grade or 4 years behind in their schooling. We try as teachers to help such children but they are beyond our training. Referring them is the only option left. Your post made me think of them.