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
- Introduction to the Twitchers
- Y is for Young Adult
- Becoming an Author
- Self-Defence
- I can do this!
- Questions from schools
- The Great Storm Whale reading
- Questions from schools
- How does Ross feel about writing and completing books?
- Favourite characters and Matthew Henson

















