And it spread because of the power of an idea -- so the very, very simple idea about turning education on its head and putting the things which were marginal, things like working in teams, doing practical projects, and putting them right at the heart of learning, rather than on the edges.
它的传播是因为思想的力量-- 所以一个非常简单的想法 它把教育放在首位 并把那些边缘性的东西 比如团队合作，实际操作 放在学习的最核心位置 而不是边缘