One of the challenges we have facing us is the variety of texts and levels we are using to measure growth. The CCSS are using the lexile leveling with qualifiers. Consequently, it helps us to be able to co-relate materials as we scaffold our students.
Following is a chart that does just that.
The post after that one, is an example of how teachers can co-ordinate their teaching efforts by using similar levels.
Hope this helps! D