Meet SAM The SAM (Science And Math) robot is able to move forward and back and pivot left or rightall with the high precision characteristic of stepper motors and all under the easytoprogram command of a graphing calculator. The basic robot serves as a platform, which can be expanded for a wide variety of additional activities. The many sensors available for the CBL, CBL2 or LabPro can be used to let SAM explore and respond to its environment. "Servo motors"available at many hobby storescan be added to activate arms or other devices. Students don't just learn about math and sciencethey learn to use math and science in activities that are fun, challenging and realistic. Click here to see the building instructions for SAM. The SAM robot is only one of our Math Machines. A Pointer / Power Pulley is a great way to teach about angles, gear ratios, torque, rotational motion, and other topics. The Basic Switch is perfect for controlling lights, buzzers, DC motors and more, plus it's a wonderful way to teach the basics of digital electronics and electric circuits. The ideal choice for a starter project that does not require soldering is the Breadboard Controller.

"There
are many examples of old, incorrect theories that stubbornly persisted,
sustained only by the prestige of foolish but wellconnected scientists.
... Many of these theories have been killed off only when some decisive
experiment exposed their incorrectness. .. Thus the yeoman work in
any science, and especially physics, is done by the experimentalist,
who must keep the theoreticians honest." 
"To
Thales the primary question was not what do we know, but how do we
know it." 