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You also see young people using the tools and the sort of genres of the Internet in order to create places for intellectual engagement, 你还发现年轻人在使用互联网工具，来创建可以进行知识交流的空间， instead of the ironi
TED演讲科技篇
Many teachers and parents have said it, it is sort of a thought ingrained in the American psyche that boys are better than girls at mathematics. But is it true? The lack of women mathematicians, engineers and physicists has often been cited as proof
万花筒2008年
Ze isn't just a great public intellectual, he's also a brilliant community builder, 泽不仅是一名出色的公知，而且是一名优秀的社团组织者， and the community of people that built up around these videos was in many ways a commun
TED演讲科技篇
But I learned what opportunity cost is. 但（通过这件事）我学会了什么是机会成本。 And along the way, the map of my life got better. 就这样，我人生的地图慢慢完整起来。 It got bigger; it contained more places. 版图不
TED演讲科技篇
I'm here today to talk about the two ideas that, at least based on my observations at Khan Academy, 今天，我要分享两个观点，至少基于我对可汗学院的观察得出的， are kind of the core, or the key leverage points for learning.
TED演讲科学篇
But what if that estimate is just based on your own experience in a non-mastery framework, 但假如那些判断仅仅是基于你们非掌握体系的个人经验， your own experience with yourself or observing your peers, 是基于你们的自身经
TED演讲科学篇