I am in charge of the Take Home Library at my kids' elementary school. We just recieved a generous donation of books to supply the library. We ahve many by The Wright Group and while there are levels on the back, we aren't sure how to level them with our library. I am looking for a Guided Reading Level comparison with these Wright Group book. Like if I have a Wright Group book at Level 1 Set E it falls in Level F of the Guided Reading Level. That was just an example of what I need. I have thirty of so sets of books I am looking to level. Can anyone help?