Texas Instruments TI-NSpire Math and Science Handheld Graphing Calculator

More on Amazon.com : http://www.amazon.com/gp/product/B000QSZD44?tag=thefatkidin06-20 Texas Instruments TI-NSpire Math and Science Handheld Graphing Calculator Ideal for Pre-Algebra Algebra 1 2 Geometry Trigonometry Precalculus Calculus Statistics Required or permitted for use on SAT ACT and AP exams Intuitive computer-style interface and cursor controls provide easy navigation between screens and functions Multiple representations offer different views of the same problem at the same time on one large screen Dynamic linking instantly reflects changes to one representation in real time to other representations of the same problem