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Archive for March, 2014

Young Students save $m by putting Math to ink!

March30

In a submission to emerging investigators, middle school students Suvir Mirchandani and Peter Pinko use the Mathematics of Percentages to calculate potential savings in ink costs by changing fonts across all documents. Summary Ink costs are a large, recurring expense for school districts worldwide. Moreover, ink production, usage, and disposal have a detrimental effect on […]

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The Mathematics of Roller Coaster Loops

March29

Now, I have a confession to make. Yes, it’s true dear H3 readers – a few years ago, while visiting Disneyland, my tech crew were keen to try out one of the roller coasters. I mentioned to them that it might not be a good idea as we had just had breakfast (so you may […]

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This Day in the History of Mathematics

March26

The University of St Andrews offers a range of valuable resources for students taking Mathematics, including “This Day in Mathematics“, famous quotes, posters, etc. Explore this virtual treasure-trove of mathematical gems. For example; March 26 – Paul Erdős (1913 – 1996) “Why are numbers beautiful? It’s like asking why is Beethoven’s Ninth Symphony beautiful. If […]

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Math strikes a chord with The Beatles

March25

This article follows some really interesting mathematical research by Jason Brown that should interest EVERY (rock or otherwise) musician in the classroom (or beyond). Yes, after a Hard Day’s Math the famous Beatles song has been unravelled to reveal the components that give the opening chord its unique sound! “TWANG! It’s been a …” There […]

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Has Mathematics helped find Malaysia Airlines Flight MH370?

March24

At the time of this post the search for debris (or anything) from Malaysian Flight MH370 is warming up, with new reports of objects floating in the southern Indian Ocean, far off the west coast of Australia. One difficulty with such searches is that, so long after the disappearance of the airliner, that objects in […]

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Artist of Geometric Proportions

March20

Rafael Araujo‘s illustrations are bewilderingly complex – so complex that you might assume the artist uses a computer to render the exacting angles and three-dimensional illusions. Araujo doesn’t use modern technology to create his intricately drawn Calculations series – unless, of course, you count a ruler and protractor. In Araujo’s work, butterflies take flight amidst […]

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Substituting into an expression with accuracy

March18

It does sound easy, but many students lack accuracy when substituting values into an algebraic expression. H3 finds that there is greater success by using brackets when putting the values in. This will ensure that the signs are worked out correctly, using the BEMA rules! Here is an example: You can download the free ppt […]

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Tough questions for tough math kids

March16

Think you’re good at maths? Results to the OECD’s ‘Programme for International Student Assessment’ (PISA) are out (December, 2013) and have been causing upset in Western democracies like the US and the UK, whose 15 year olds have scored badly by international standards. The questions in PISA tests are segmented by difficulty, with level 6 questions […]

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Predicting Ice Melt with Math

March11

How can Mathematics help us understand the melting of our polar ice. This video from live science looks at the use of Mathematics as a practical tool to do this. Core samples help scientists develop powerful formulae for calculating changes in our important ice caps. This video shows the importance of quantifying our understanding of […]

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The biggest % sign of all…

March9

Seen by H3 in Milan recently – what is perhaps the biggest percentage discount of all time (at least by size if not by amount)? Now, here is an interesting visual to take from this sign for our growing mathematicians. Look at the % part of this image. Can you make 100 from it? Yes, […]

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