This product provides a quarter-long curriculum for 4th grade, differentiated guided reading groups. The majority of the books come from Reading A-Z and Science A-Z. The differentiated curriculum is aligned to Common Core Standards and allows for teaching similar content to your entire class while working at the individual reading levels of each of your students. This curriculum has been used successfully in both general education and special education classrooms. In addition, over 80% of the students using this curriculum showed significant gains on standardized tests and averaged at least 1.5 years or more of Lexile growth.