The Basic Symbols of the American Political Tradition

An ultra-durable strap combines with a multifunctional dial to give this watch some kick, by AX Armani Exchange.

No adjustable extender on chain

Imported

Link representations - Manipulate the properties of one and observe instant updates to others without switching screens

Includes an easy-glide Touchpad that works more like a computer with a mouse

Explore individual representations, one at a time, or as many as four on the same screen

See multiple representations of a single problem - algebraic, graphical, geometric, numeric and written

Grab a graphed function and move it to see t ...