You may never have heard of modular arithmetic, but you use it every day without the slightest difficulty. In this system, numbers wrap around when they reach a certain size called the modulus; it is ...

Learning Disability Quarterly, Vol. 37, No. 4, Special Series: Reading: Part Two of Two (NOVEMBER 2014), pp. 241-251 (11 pages) This purpose of this study was to examine the reliability and validity ...

The Monthly publishes articles, as well as notes and other features, about mathematics and the profession. Its readers span a broad spectrum of mathematical interests, and include professional ...