Some schools seem to use reading scheme books in the wrong order - I'm referring here to both decodably synthetic phonics based schemes, and sight word based schemes .e.g the old Biff, Chip and Kipper ORT books. They stick the schemes in boxes by "stage" or "bookbands" but then the children pick the books out of the box themselves and read the books in the wrong order. I have always failed to understand this method. A sightword based scheme presumably introduces and practices words in a particular order, and will be easier to learn from if used in the order in which it was intended, and the same goes for decodable readers which introduce GPCs in the order used by that particular scheme. So what is the rationale for doing it this way? And doesn't it muck things up?