"Leveled reading" refers to a way of organizing books and other reading materials based on their difficulty levels. It helps match readers with books that are appropriate for their reading skills. Full definition
For example, an 8 - year - old may test high in math and be placed in a fourth grade level math class but sent to a third grade level reading class. (thespruce.com)
Simply put it is to help students get ready for dealing with higher level reading, e.g. fiction / non-fiction texts. (tes.com)
But this is a surface level reading of that scene: between the lines, the two fail to communicate or understand how to let the other one into their interior life. (theretroset.com)