From the Arizona Department of Education website:
To support the implementation of Arizona's System of School Support in order to impact teaching and learning in K-12 classrooms so that educationally disadvantaged students achieve high academic success.
Title I, under the No Child Left Behind Act (NCLB), provides financial assistance to local educational agencies to meet the needs of special educationally disadvantaged children at preschool, elementary, and secondary school levels. The purpose of Title I is to help all children achieve the state's academic standards. This is accomplished through supplemental programs that consist of instructional services, instructional support services, school-wide reform efforts, and increased involvement of parents in their children's education.