The three door problem has become a staple mathematical mindbender, but even if you know the answer, do you really understand it? Phil Wilson lets his imagination run riot in this intergalactic application of Bayes' Theorem.

Are records predictable in any way?

Careers in mathematics: A set of three posters from Plus

  • The permanent revolution - The government's response to Adrian Smith's Inquiry into post 14 mathematics education
  • A-levels - Are the ever-improving results a sign of falling standards?