# Category: Essential Math

## James Grime: FOOL FOR MATHS*

James Grime is a mathematician with a personal passion for maths communication and the promotion of mathematics in schools and to the general public. He can be mostly …

## Models and Delving Deeper Into Division

Models and Delving Deeper Into Division   Last month, we unpacked the long-division procedure taught in American K-6 classrooms, tied it into the standard “long multiplication” algorithm, discussed issues …

## What’s Hiding Within Long Division?

Look familiar? For most people, if they ever learned to do long division properly, they had to “master” something similar to the above procedure/algorithm. What was not required …

## James Tanton: An Australian Mathematician in Uncle Sam’s Court

My guest this month is James S. Tanton, a mathematician, math educator, and author. He was awarded the Kidder Faculty Prize for his teaching at the The St. …

## Thirteen Ways of Looking at Multiplication (with apologies to Wallace Stevens)

Well, no, I’ve lied: not thirteen, but merely four ways of looking at (and doing) multiplication are contained herein. And I hope to convince you that they are essentially …

## Algebra, Asimov, and Missing Steps

When I was young, I could not get algebra. In particular, I would encounter magical operations like this: x + 5 = 8 followed by: x = 8 – …

## Ten Great Quick Calculators for Computer Users

From time to time, computer users may need to perform a quick calculation such as adding or multiplying two large numbers. This is particularly true if the computer user …

## Are Fingerprints Unique?

On March 11, 2004 a series of bombs exploded aboard four commuter trains in Madrid, Spain, killing 192 people and injuring 2050. The Spanish police recovered a bag containing …

## What are the odds? Flipping 10 heads in a row

singingbanana released an interesting video about the odds of flipping 10 heads in a row. It is basic probability and the video is entertaining enough to warrant sharing it …

## Teaching Prime Numbers to Children

The other day I received a math book that’s geared towards children. It’s called “You Can Count On Monsters” (USA | UK | Canada) by Professor Richard Evan Schwartz. …