How many socks make a pair?
Maths for Mums and Dads
books

Books

I've written or co-written eleven books, some of which have appeared in several languages. The majority are about the maths of everyday life, but I've also written books on cricket, memory and creative thinking.

maths-and-puzzles

Maths

I am Director of Maths Inspiration, a national programme of interactive lecture shows in theatres that has reached over 100,000 teenagers in the last ten years. I'm closely involved with the UK maths community, from primary schools to universities.

talks-and-radio

Talks & Radio

I give talks to adults and children that range from small interactive workshops to keynote lectures in front of several hundred. I've also done lots of radio, including BBC Radio 4, 5Live, Radio 3 and 2, but not 1 or 6...yet.

Recent Blogs

Cheryl and the Perfect Logicians
13 April 15

The Cheryl birthday puzzle that recently went viral has opened s a can of worms. more...


The Curious Popularity of Mackerel Questions
6 April 15

A trivia question that led to the pastime of Tubewhacking more...


The Maths of Red Noses
6 March 15

There are nine noses to collect for the full Comic Relief set. But how many do you have to buy before you've got the lot? more...


How the World Cricket Rankings were born
31 January 15

With cricket's World Cup about to start, here's my previously untold story behind how the world player rankings began. more...


Homework Should be for Parents, Not Kids
6 January 15

Most maths homework for primary children is a tedious chore. Schools should set homework that parents enjoy. more...


How Donald Duck created an Urban Myth
19 December 14

From architecture to credit cards, myths about the beauty of the golden rectangle are hard to dispel. It's Donald Duck's fault. more...


What can the Chinese learn from us?
1 December 14

English schools are discovering some highly effective teaching methods from the Chinese. But what can the Chinese learn from us? more...


Problem Solving and Jardin's Principle
2 October 14

A universal syndrome that is often observed but doesn't have a name. Well it does - but hardly anyone knows it. more...


Fronted Adverbials and other Pointless Jargon
10 May 14

This morning I discovered some new jargon. And I'm annoyed. more...


How to Teach Maths
4 February 14

If exams didn't exist how would I teach maths? And what maths would I teach? more...


Recent Tweets

At Fenchurch St station. That's the last one on my lifetime Monopoly Board (London) tour ticked off.

about 12 hours ago

How can parents of teenagers be supported in maths? Or by that age is it too late? On panel discussing this at today's @nat_numeracy forum.

about 16 hours ago

Look at Q12 on this Nov 2014 GCSE maths paper http://t.co/S0NI62Zm5S What's the 'right' answer? The best answer?Same thing? @colinthemathmo?

1 day ago

RT @GeoffBath: Cheryl's dad breaks cover. The composers of famous maths problems are heroes of the modern age. :-) http://t.co/WL5cIcJCoI

2 days ago

Brit culture increasingly dominated by those who went to elite public schools - politics acting music and now cricket http://t.co/5YaL2IMVff

3 days ago