IMPORTANT: STEMcentric will be switching to YouTube hosting in the next few days. This is because Dropbox has changed their policies and dropped support for public folders AND browser support for Flash is going away. If you are blocked from running YouTube at your school consider downloading a version to run locally. You'll find that link on each of the tutorial pages.
STEMcentric is a resource for those involved with STEM education, either as a student or instructor. It is the home for the LEGO Robotics tutorials for the Mindstorms EV3, NXT and even the RCX. STEMcentric is lovingly maintained by FRC Team 1540, the Flaming Chickens.