The TI-Nspire CX CAS Teacher Bundle is a single handheld calculator and a single license TI-Nspire & CAS Teacher Software. Plain White Box. Ideal for Pre-Algebra, Algebra 1 & 2, Trigonometry, Geometry, Pre-calculus, Statistics, Business & Finance, Biology, Physics, Chemistry, Calculus, AP Statistics, AP Physics, AP Calculus, and Linear Algebra. Full-color screen with backlit display. All the functionality of the TI-Nspire CX handheld plus a built-in Computer Algebra System (CAS). Touchpad navigation works more like a laptop computer. Ability to utilize images and overlay with graphical elements on screen; Powered by a TI-Nspire Rechargeable Battery; View multiple representations of a single problem on screen, at the same time; Make changes to one representation of a problem and instantly see how it affects other 'dynamically linked' representations; Built-in interactive geometry capabilities; Navigate easily between screens and functions using the intuitive, computer-style interface that includes drop-down menus and simplified cursor controls; Enter text easily using individual (alpha) letter keys; Create and save problem-solving steps as electronic TI-Nspire documents similar to those on a computer; Link directly to another TI-Nspire or TI-Nspire CAS handheld or a computer to easily transfer TI-Nspire documents back-and-forth; Available memory: 16MB RAM / 20MB ROM.