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 ...

One of my fellow contributors here recently wrote a post about leap years and why we have them. This reminded me of modular arithmetic and the formula for calculating the day of the week for any date ...