http://www.wartoft.nu/software/sebran/
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Sodaplay - my all time favorite website for the creative scientists:
http://sodaplay.com/
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Game Design - great intro to programming (4th grade on up, PC only)
http://www.yoyogames.com/gamemaker/
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[ For info on ISED-L see http://www.gds.org/ISED-L ]
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