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
- Questions from schools
- Questions from the audience
- Cracking questions
- A question about Charlie and Lola
- Working with young writers
- Studio questions
- About Our Tower
- Favourite characters and Matthew Henson
- Reading from 'Luna Loves Dance'
- Social media and influencers

















