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这是上海新编高中数学教材(第二册)中放在三角函数之后的一篇阅读材料。原文为英文,选自S.P.Gordon所著的《Functioning in the Real World》一书(Addison-Wesley,1996,pp.477-479),编入教材时略有删改,并加了标题。本刊转载于此,并由华东师范大学袁震东教授将它译为中文,三角函数的科学价值在这篇材料中得到充分体现,为数学思想的创新提供了一个绝好的范例,对于扩大学生的视野十分有利。希望本文能为教材中如何选择阅读材料提供新的思路。
This is a reading material after the trigonometric function in Shanghai New Senior High School Mathematics Teaching Book (Volume 2). The original text is in English and is selected from the book “Functioning in the Real World” by S. P. Gordon (Addison-Wesley, 1996, pp. 477-479). It was slightly modified and added to the title when it was incorporated into the textbook. The journal is reproduced here, and translated by Professor Yuan Zhendong from East China Normal University into Chinese. The scientific value of the trigonometric function is fully reflected in this material, providing an excellent example for the innovation of mathematical thinking, and for the expansion of students. The horizon is very favorable. I hope this article can provide new ideas for how to choose reading materials in the teaching materials.