Audio & Video
Beat the Calculator
Kjartan Poskitt proves what looks complicated can be simple.
- Beat the Calculator
- 1089
- Perfect pentagon
- Fabulous flexagon
- Making Cubes
- Prime number pizza
- Numerical masterclass
- Q&A with Kjartan Poskitt
- Schools questions
- Sport brings us together
- Questions from schools
- 100 Words on Friendship
- Sputnik
- Phil’s presentation
- Chae is Dr Who
- The power of fantasy fiction
- Early drawings
- Reading from Grimwood: Attack of the Stink Monster

















