A high school teacher didn't expect a solution when she set a 2,000-year-old Pythagorean Theorem problem in front of her ...

This article presents a way of studying the rationality that mathematics teachers utilize in managing the teaching of theorems in high-school geometry. More generally, the study illustrates how to ...

Remarkably, Hawkins could find none of these theorems in the works of Euclid, the ancient Greek geometer who had established the basic techniques and rules for what is known as Euclidean geometry.

Many mathematicians over the years have explained why the theorem works using algebra and geometry. In contrast, Jackson and Johnson were able to prove it using trigonometry — a subbranch of ...

Carl Ludwig Siegel, A Mean Value Theorem in Geometry of Numbers, Annals of Mathematics, Vol. 46, No. 2 (Apr., 1945), pp. 340-347 ...

Dr. Trinh also gave the problems to a system developed in the 1970s that was known to be the strongest geometry theorem prover; it solved 10.

Well, perhaps it's time you invest in a new theorem. Unlike many of the other things you can name after someone, this one is pretty cheap ($24).