Gary Stager visits MLC School in Sydney with Seymour Papert NEW! Gary's guide to LEGO Robotics Logo and "Logo-like" Programming Environments for Learners MicroWorlds EX Robotics (commercial - Mac & Windows) Preferred MicroWorlds Jr. (commercial - Mac & Windows) Scratch (free - Mac & Windows) Berkeley (UCB) Logo (free - Mac, PC & Linux) NetLogo (free - Mac & Widows) StarLogo TNG (free - Mac & Windo