Standard graphing for math and science, permitted on standardized tests. Ideal for Pre-Algebra, Algebra 1 and 2, Trigonometry, Statistics, Business and Finance, Biology, and Physics. Permitted for use on SAT, PSAT/NMSQT, ACT, AP, IB, and Praxis exams. Includes USB cable for instant computer connectivity. Preloaded software, including the Cabri Jr Geometry app. Student units connect by adapter to ViewScreen panel or TI-Presenter video interface. Includes four AAA batteries.