Hi, very nice introduction to coding based on Blocky http://learn.code.org/ :) *** And many more tools http://code.org/learn Though could mention more PyTools http://www.codeskulptor.org/ , http://reeborg.ca/, maybe http://pythontutor.com/ :) -- Jurgis Pralgauskis tel: 8-616 77613; Don't worry, be happy and make things better ;) http://galvosukykla.lt