Texas Instruments TI-73 Graphing Calculator Ideal for Pre-Algebra, Algebra 1, Statistics and Physical Science. Permitted and/or recommended for use on SAT, PSAT/NMSQT and AP exams. Flash technology for upgrading and loading future applications Fourteen-digit accuracy displayed to 10-digits with two-digit exponent Graphing calculator for students in middle grades Large display screen Easy-to-use keyboard Stacked fractions Upgradable with flash software to keep up with changing curriculum