Texas Instruments has upgraded it's TI-83 calculator to meet the needs of the ever changing high school curriculum. With it's high resolution screen and app capability, the TI-84 Plus offers the user a variety of upgrades to make the calculating experience more practical, more readable, and overall more enjoyable. This calculator has all of the familiar functions of the TI-83 model, but allows the user more memory and cleaner graphs. In addition, the TI-84 Plus has the capability to be connected to other calculators, computers, or to be projected onto a screen for presentations. Overall, this powerful calculator is an essential tool for high school math class.