What is the relationship between writing and reading comprehension?

There is a very strong relationship between reading and writing. First, reading and writing are both functional activities that can be used to accomplish a task.  Second, reading and writing draw upon the same skills, knowledge, and processes in terms of being able to read and comprehend text and in terms of being able to write text.  Another way of thinking about this is that when you write — if you’re doing it the right way — you have to think about your reader.

So there’s this connection between writing and making sure that your reader comprehends, and when you read it’s helpful to think about the author behind the text as well.  In fact, teaching one helps the other. However, neither by themselves are sufficient; just teaching reading doesn’t make for a greater writer and just teaching writing doesn’t make for a great reader.  We want to take advantage of how they overlap but we need dedicated time of instruction for both.