### Find x

see Post Support for answer–>

December17

see Post Support for answer–>

April5

This cartoon prompted some really great discussion in my junior math classes…

November6

Errors #1: This image shows a student’s working. What went wrong? Well, obviously x should = 17, not the square root of 17. Perhaps a better way to explain the error is like this: When solving equations (expressions with an equal sign) like this, remember the algebraic rule: “Whatever you do to one side, do […]

May8

An Italian maths professor was recently escorted off an American Airlines flight after a fellow passenger feared his mysterious scribbling on a notepad was evidence that he was a terrorist. In fact Guido Menzio was working on an equation connected with a presentation on price-setting he was due to present. He was flying from Philadelphia […]

January19

A recent news article (in the NZ Herald) indicated some hope in the chase to find effective cancer cures. It noted, “A cancer forms when a cell in the body goes awry, multiplying out of control to form a tumour. A typically-sized cancer tumour is made up of more cells than there are people on […]

May11

So, you are at a friend’s party and they ask, “What did you do in the weekend?” You reply, “Well, I did a bit of Math and…” Whaaat?” they say, startled. “You did What???” “Mathematics!” “And what kind of Math did you do that made your weekend so exciting?” “Change the subject!” you say to […]

May5

One of history’s great geniuses, Isaac Newton (yes, the mathematician with the curly hair sitting under the apple tree), developed differential equations in the 1600s. But we aren’t all geniuses, so here’s the definition given in Differential Equations for Dummies (caution – this link downloads over 300 pages!) such equations “involve derivatives, which specify how […]

October3

Predicting the future to make money – that’s what Ernie Chow does for an investment funds manager. His skill in developing differential equations to model future trends in the stock market, along with his ability to solve those same equations means he can predict the future. Or at least do it as well as science […]

July7

A quite amazing phenomena, toroidal bubbles can be found in many fluids. Technically, During the collapse of a bubble near a surface, a high-speed liquid jet often forms and subsequently impacts upon the opposite bubble surface. The jet impact transforms the originally singly-connected bubble to a toroidal bubble, and generates circulation in the flow around […]

April29

New Zealand scientists are surveying several hundred people about their experiences in the February 2011 earthquake which devastated many parts of Christchurch, in the South Island. “Teams of scientists will scour the quake-shattered eastern suburbs of Christchurch to gather vital information to improve earthquake hazard and risk assessments in New Zealand. Where owners or occupiers […]