○  TED英语演讲稿：如何逃出教育的“死亡谷”  ○

n economic point of view, this is good math, isn't it, that we should do this? It actually costs an enormous amount to mop up the damage from the dropout crisis.

　　But the dropout crisis is just the tip of an iceberg. What it doesn't count are all the kids who are in school but being disengaged from it, who don't enjoy it, who don't get any real benefit from it.

　　And the reason is not that we're not spending enough money. America spends more money on education than most other countries. Class sizes are smaller than in many countries. And there are hundreds of initiatives every year to try and improve education. The trouble is, it's all going in the wrong direction. There are three principles on which human life flourishes, and they are contradicted by the culture of education under which most teachers have to labor and most students have to endure.

　　The first is this, that human beings are naturally different and diverse.

　　Can I ask you, how many of you have got children of your own? Okay. Or grandchildren. How about two children or more? Right. And the rest of you have seen such children. (Laughter) Small people wandering about. I will make you a bet, and I am confident that I will win the bet. If you've got two children or more, I bet you they are completely different from each other. Aren't they? Aren't they? (Applause) You would never confuse them, would you? Like, "Which one are you? Remind me. Your mother and I are going to introduce some color-coding system, so we don't get confused."

　　Education under No Child Left Behind is based on not diversity but conformity. What schools are encouraged to do is to find out what kids can do across a very narrow spectrum of achievement. One of the effects of No Child Left Behind has been to narrow the focus onto the so-called STEM disciplines. They're very important. I'm not here to argue against science and math. On the c

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