Just because she CAN read at grade level, doesn't mean she IS reading in an efficient way to keep up with the curriculum. She may not need specialized instruction in reading, but it sounds like she does need goals on staying focused, as well as accommodations to help with her "attention challenges" (is there a diagnosis of ADHD?). For instance, would having someone read the material to her help her stay focused? Would test-to-speech or audio textbooks help? Focus on the attention disability and not the reading per se. Then develop goals and accommodations around that.