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
- What inspired Ross MacKenzie to continue with his series of books?
- Where monsters come from
- Who is Josh Bell?
- Finding the bear
- Schools questions
- Chocolate Cake
- The origins of 'Lads'
- Desert island books
- How to draw a cheetah
- Prez

















