Woot offers Texas Instruments TI-Nspire CX II Color Graphing Calculator with Student Software (PC/Mac) for $99.99 (orig. $165). Free shipping for Prime Members.

Product Features:
Texas Instruments TI-Nspire CX II Color Graphing Calculator
Faster performance, added interactive visuals and easier-to-read graphics expand the TI-Nspire CX graphing calculators’.

• Animated path plot: Visualize function, parametric and polar graphs as they are drawn in real time.
• Dynamic coefficient values: Explore direct connections between dynamic coefficients in equations and graphs.
• Points by coordinates: Create dynamic points defined by coordinates, sliders or expressions quickly.

New features open new paths to understanding

• Tick-mark labels: Label axes scales to create visual contexts that promote understanding.
• TI-Basic programming enhancements: Write code for visual illustration of key math, science and STEM ideas.
• Easier-to-read graphics: New app icons, supported by color-coded screen tabs, improve the user experience.

Built on a foundation

• Calculator: Perform computations and enter expressions, equations and formulas in proper math notation.
• Graphs: Plot and explore functions, equations and inequalities, animate points on objects and graphs, use sliders to explain their behavior and more.
• Geometry: Construct and explore geometric figures and create animations.
• Vernier DataQuest Application: Create a hypothesis graphically and replay data collection experiments all in a single application.
• Lists & Spreadsheet: Perform mathematical operations on data and visualize the connections between the data and their plots.