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Category: Essential Math

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 …

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 …

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. …

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 …

When I was young, I could not get algebra. In particular, I would encounter magical operations like this: followed by: followed by (AHA!): Obviously, x was three! Only it …

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 …

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 …

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 …

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. …

Concavity characterizes so much of the world — from the distribution of sizes of animal species, to the potential return-on-investment from small vs large companies, to the temperature of …