勾股定理是平面几何学中的一个非常重 要的定理.长期以来,人们对它进行了大量的 研究,找到了许多不同的证明方法,这些证明 方法不仅证出了定理,而且丰富了研究数学 问题的手段与方法,促进了数学的发展.现与 同学们谈谈人类早期对这一定理的发现与巧 妙的证明. The Pythagorean theorem is a very important theorem in plane geometry. For a long time, people have done a lot of research on it and found many different methods of proof. These proof methods not only proved theorems, but also enriched the research mathematics problem. The means and methods promoted the development of mathematics. Now we talk with the students about the early discovery and ingenious proof of this theorem.