The abacus has been around for several thousand years, and it is an efficient and interesting counting machine. The standard abacus can be used to perform addition, subtraction, division, and multiplication, along with...

A list of mathematics journals with articles on the Web and a list of Web sites for printed journals, with tables of contents of issues, abstracts of papers, actual papers, information about submissions and...

An investigation of the problem: Consider a plane, ruled with equidistant parallel lines, where the distance between the lines is D. A needle of length L is tossed onto the plane. What is the probability that the needle...

Math educators and aficionados may be interested in Celebratio Mathematica, an open-access digital publication that "celebrates mathematics and related fields, and their people." Visitors to this project will find...

A unit designed to teach metrics. It discusses what metrics are, and how and why the system came about. Arguments are presented for why it should be taught, and disadvantages are mentioned. Includes an outline of the...