Texas Instruments TI-83 Plus Graphing Calculator Black Student Math Science Texas Instruments TI-83 Plus graphing calculator in classic black. This reliable device is a staple for high school and college mathematics, including algebra, geometry, statistics, and calculus. It features a high-contrast LCD screen and a slide-on hard case for protection when not in use. The unit is powered by four AAA batteries and includes a backup battery compartment to preserve data. Ideal for students and professionals needing a durable, user-friendly tool for complex , tested akd working #School