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 and Answers
- Alastair’s influences
- Diving Poem
- Stories are people
- Ideas and inspirational teachers
- A question from Twitter
- Writing Tips with... Catherine Rayner
- A first science fiction novel
- Rachel’s books and inspirations
- This is a democracy

















