Students build a programmable robot using LEGO Mindstorm NXT and learn the object-oriented visual programming language NXT-G to program their robots. They program their robots to use touch, sound, light/color and ultrasonic sensors to solve scientific and everyday challenges. The programming commands direct robots to use their sensors to determine where they are, use their “brains” to control actions and their motors to move. Students choose to build a mechanized robotic arm, a walking bi-pedal humanoid or even a stinging scorpion.