Free weekly maths challenges

Dr Simon Singh, author of the No. 1 bestseller Fermat’s Last Theorem and The Simpsons and Their Mathematical Secrets has created a set of weekly maths challenges – just 15 minutes of interesting, fun and challenging material that goes beyond school maths: mystery and history, activities and oddities, puzzles and problems. (After Christmas, the challenges will take a bit longer.)

  • Sign up and each week on Thursday you will receive a Parallelogram, a weekly set of maths challenges.
  • It’s FREE to sign up and all the materials we offer are FREE.
  • Even without an account, you can get a taste of what we offer by just clicking on the Parallelograms on the left.
  • Teachers can create an account and set Parallelograms for their classes.
  • This site is aimed at 11- to 15-year-olds, but everyone is welcome.
  • We’ll be adding material for older students next year.

Noun: Parallelogram
Pronunciation: /ˌparəˈlɛləɡram/

  1. a four-sided plane rectilinear figure with opposite sides parallel.
  2. mathematics running parallel to classwork (posted via an online telegram).

The project was devised as an add-on for the Top-Top Set Project and is supported by the Good Thinking Society. All the materials are completely free.