快乐的数学人生

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Host: In Boston, 7,000 mathematicians, math teachers and math enthusiasts from all over the world converged for something called the Joint Mathematics Meeting. Naturally, there was a lot of this...

Participant A: C plus S minus two.

Participant B: Well, S is A plus B and C is two.

Participant C: Right.

Host: But reporter Ari Daniel Shapiro also found a lot that he wasn’t expecting.

Ari Daniel: This meeting’s like a big family reunion. It just happens to be packed with people who adore math. Sarah-Marie Belcastro is a mathematician based in western Massachusetts. She also 1)crochets

and knits. Belcastro pulls out one of her current projects. Sarah-Marie: OK. This is crochet and this is mathematical. The origin of this is, I wonder what

主持人：7000名来自世界各地的数学家、数学老师和数学爱好者云集波士顿，出席全美数学会议。自然而然地，会场上有很多这样的事……

参会者甲：C加S减2。

参会者乙：嗯，S是A加B之和，C是2。

参会者丙：对。

主持人：但是记者阿里·丹尼尔·夏皮罗还发现了很多出乎他意料的事。

Ari Daniel: Tom Hull is a math professor at Western New England University. He studies the math of 5)origami and how to use origami to teach math.

Tom: I’m making something called a “square twist.”It takes that inner diamond in the center of the paper and literally twists it 90 degrees. I kind of think that you can’t do origami without doing math. Whenever you fold a point to a line, you’re actually doing calculus. Math is hidden in origami. You just don’t see it, but your hands are doing it.

阿里·丹尼尔：汤姆·赫尔是一名西新英格兰大学的数学教授。他研究折纸里的数学，以及如何使用折纸去教授数学。

汤姆：我正在做的东西称为“扭曲方形”。在纸中心做一个内菱形，并将它扭转90度。我这么想，不用数学你就做不了折纸。任何时候你将一个角折到一条线上，你就是在做微积分。数学隐藏于折纸之中，你只是没有看见，但你的手却在演绎数学。

Ari Daniel: In between giving and listening to formal math talks, a good sized crowd’s gathered for the mini course on math and dance. Karl Schaffer is leading the class in a full body warm-up on a dance floor that the meeting organizers have provided. Schaffer is a mathematician at De Anza College and co-directs a small contemporary dance troop in California.

Karl: I would like the participants to experience creating 9)movement phrases and performing them for each other in ways that deal with mathematical concepts.