Posted in revision

I never really learned how to revise for a maths exam at school. I'm sure people tried to teach me, but I generally wound up reading passively through my notes, maybe copying them out, and possibly writing big question marks on them in highlighter. It worked ok for me, at

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Posted in revision

When you've got a maths exam coming up, you need to study for it. Trouble is, you don't know how. Here are a few tips and tricks that can help you improve - as Katrina says: I got my results back. My previous exam, i did really badly, but by

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Posted in revision

I never really learned how to revise for a maths exam at school. I'm sure people tried to teach me, but I generally wound up reading passively through my notes, maybe copying them out, and possibly writing big question marks on them in highlighter. It worked ok for me, at

Read More →
Posted in in praise of..., ranting, sport

or, why we need to show exams the red card Oh, Jesus wept. A study shows that in even years - when there's meaningful international football in the summer - boys' exam performances drop. The authors suggest starting the exams earlier so as not to disadvantage football-watchers. Let's leave aside

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Posted in decision maths, psephology

I don't think that the benefit to one party or another is a valid reason to pick a voting system - but one of the features of AV is that it tends to select the least objectionable candidate. Here's a simplified example. Let's imagine we have four candidates contesting a

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Posted in statistics

There's an excellent article by talking about a really interesting probability 'paradox' to do with summer births. It's not really a paradox (as with a lot of probability, it makes perfect sense once you think it through), but the "at least one boy" puzzle was one of my favourites growing

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Posted in logarithms

(Photo courtesy of UN Development Program.) We've had a lot of noticeable earthquakes around the world in the last year or so - Haiti, Chile, New Zealand. Probably no more than usual, except that we notice them more - but that's a topic for another day. Instead, we're going to

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Posted in ranting

Here, let me get on this soapbox a moment Things that irritate me beyond end, number two in a series of, well, lots: grumbles about how "oh, it's pointless teaching maths, you only ever use it to work out discounts in the supermarket and there are calculators on your phone

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Posted in algebra, geek pride, prime numbers

If you follow the great big geeks on twitter - and , I'm looking at you - you'll have seen bits and pieces of discussion about prime birthdays. How to find your next prime birthday It's your prime birthday if you've been alive for a number of days that happens

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Posted in algebra

Two things: the somewhat random-looking picture above is from The Moon Is Blue, a 1953 film that's the first known reference to the 'dating rule' discussed here. Secondly, I don't make any judgement about the validity of the 'dating rule' - you might find it a useful rule of thumb

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