Wall Street Journal

The Modular Method of Mahjong

I welcomed the New Year by playing mahjong with my family. The version we play starts with one person rolling three dice and then counting around the table of four players to whatever the total is.
The Irish Times

Modular arithmetic: you may not know it but you use it every day

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 ...
Forbes

This Math Trick Will Let You Find The Day Of The Week For Any Date

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 ...
Education Week

Number Sense, Not Counting Skills, Predicts Math Ability, Says Study

A child’s ability to understand and manipulate sets of numbers in 1st grade predicts how well he or she will succeed in the math required both in secondary school and for day-to-day living, according ...
JSTOR Daily

Curriculum-Based Measurement and Standards-Based Mathematics: Monitoring the Arithmetic Word Problem-Solving Performance of Third-Grade Students at Risk for Mathematics ...

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 ...