Arizona’s Instrument to Measure Standards (AIMS) is the statewide, standards-based assessment. AIMS measures the performance of students, schools, and districts on academic standards in reading, writing, and mathematics and is administered to students in grades 3, 5, 8, and high school. The central components of standards-based education include a curriculum aligned to the Standards, instructional materials aligned to the Standards, and the evaluation of teachers to ensure the Standards are integrated into instructional practices. These components are the organizational foundation for successful student achievement of the skills and knowledge of the Standards.