"The days of walled-off learning, where students are separated into grades, disciplines and physical locations, are giving way to programs in which students are encouraged to look beyond lecture halls, labs, and textbooks. Technology offers opportunities to bring together people, tools, and data in a global commons . Creating a global commons requires more than removing barriers posed by subject matter, geography, economics, or age. It requires a new set of models that may challenge many of our historic assumptions about authority and education. This presentation explores principles and examples that hint at a future global commons."