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
- Reading from The Crossover
- Birdspotting Quiz
- Introduction to the Twitchers
- Introducing us to new historical figures
- Tom on his illustrations
- Sport brings us together
- Questions from schools
- Making the change
- The World of the Crossing
- Who is Josh Bell?

















