Writing well for students who don't read easily

Writing is something educators need to do fairly frequently for young people with additional learning needs. They may need to adapt a piece of text, write a case study, communicate a task or assessment requirement or provide feedback about some work the student has handed in. Writing in a way which is meaningful and useful for the student is clearly an important part of any written exchange between an educator and a student. But how often do we stop to think about just how we convey the message