Standard graphing for math and science, permitted on standardized tests. Ideal for Pre-Algebra, Algebra 1 & 2, Trigonometry, Statistics, Business & 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.