Killing Spree

Self-motivated: Your own motion powers this kinetic Seiko watch in two-tone stainless steel. Round stainless steel case and bracelet. Blue dial features goldtone Roman numerals and stick indices and date window. Kinetic® quartz movement. Water resistant to 30 meters. Three-year limited warranty.

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 ...