Manchester Science Festival takes over the city from 23rd October – 2nd November this year, and it’s got a great selection of mathematical events. If you’re based locally, or thinking of heading over there for any of the time, here’s The Aperiodical’s guide to where to get your factorial fix.

# You're reading: Posts Tagged: Alex Bellos

### IMA 50th Anniversary events

The IMA turns 50 this year, and is holding two celebration events and publishing a book.

### 3.142: a π round-up

‘Tis the season to celebrate the circle constant! Yes, that’s right: in some calendar systems using some date notation, the day and month coincide with the first three digits of π, and mathematicians all over the world are celebrating with thematic baked goods and the wearing of irrational t-shirts.

And the internet’s maths cohort isn’t far behind. Here’s a round-up (geddit – *round?!*) of some of our favourites. In case you were wondering, we at The Aperiodical hadn’t forgotten about π day – we’re just saving ourselves for next year, when we’ll celebrate the magnificent “3.14.15”, which will for once be more accurate to the value of π than π approximation day on 22/7. (Admittedly, for the last few years, 3.14.14 and so on have strictly been closer to π than 22/7. But this will be the first time you can include the year and feel like you’re doing it right.)

### How to Teach Maths by Alex Bellos on Radio 4

Media math-man Alex Bellos has made another programme for BBC Radio 4, this time about How to Teach Maths.

Alex Bellos takes you on a mathematical learning journey from the first stages of number recognition through to an understanding of how children solve sums and calculate answers. On the way he will look at the neuroscience of maths and how our mathematical brain develops. He investigates the scientific evidence behind teaching maths and he’ll compare how modern methods of teaching children differ from those taught to their parents, helping kids today go beyond basic numeracy to develop a passion for numbers.

By the way, Radio 4 have also been repeating Marcus du Sautoy’s enjoyable *A Brief History of Mathematics* at a quarter to two each afternoon. That’s also available to listen to on the Radio 4 website.

**Listen: **How to Teach Maths on BBC Radio 4.

### Nirvana by Numbers

Alex Bellos has made another documentary for BBC Radio 4, this time about the number zero. It’s a pleasant bit of numerical tourism, as Alex travels to India to find the source of the number zero in a small shrine, with a diversion to talk about Vedic maths along the way.

You can listen to *Ni**rvana by Numbers* on the BBC iPlayer. It looks like it’s available indefinitely. If Alex has whetted your appetite for historical zeroes, the book *Zero: The Biography of a Dangerous* Idea by Charles Seife is a cracking read.

**Listen: ***Nirvana by Numbers* on BBC Radio 4.

### Not Mentioned on the Aperiodical this month, 21 August

Here are three things we noticed this month which didn’t get a proper write-up, due to thesis/Edinburgh fringe/holidays: a big proof, a fun maths book club, and a ridiculous bit of pi-related madhattery.

### Not mentioned on The Aperiodical last year

Here’s a quick round-up of some news stories from the tail end of 2012 that we characteristically failed to write up!