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Parallelograms
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 15-30 minutes of interesting, fun and challenging material that goes beyond school maths: mystery and history, activities and oddities, puzzles and problems.

  • 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.

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).

All the materials are completely free.

Level 1 is aimed at students in Year 6 (ages 10 to 11 years), while Level 6 is for students in Year 11 (ages 15 to 16 years). When you create an account, you will automatically be set at the appropriate level, and you will move up a level each September. You can change your Level in Settings if you are finding the material too easy or too challenging.