Which linked materials are you referring to? In "drawing sufficient evidence from texts" (as the standards mention), much of what I see at the common core state standards link to
ELA grade 3-12 curriculum standards (Coleman & Pimentel, 19 pages, Revised 4/12/2012) references reading at "
grade level".
"Scaffolding" is also mentioned to support students who've not yet developed abilities as readers.
I do not find mention of students who are beyond proficient.
I find one reference to reading at a student's
OWN level. This is found in a context which places several parameters on what is deemed a student's choice:
Additional materials aim to increase regular independent reading of texts that appeal to students’ interests while developing both their knowledge base and joy in reading. These materials should ensure that all students have daily opportunities to read texts of their choice on their own during and outside of the school day. Students need access to a wide range of materials on a variety of topics and genres both in their classrooms and in their school libraries to ensure that they have opportunities to independently read broadly and widely to build their knowledge, experience, and joy in reading. Materials will need to include texts at students’ own reading level...
A limited amount of flexibility is indicated when the document states
Curriculum developers and teachers have the flexibility to build progressions of texts of increasing complexity within grade-level bands that overlap to a limited degree with earlier bands (e.g., grades 4–5 and grades 6–8).
