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
- Self-Defence
- Cuiken Primary film
- Questions from schools
- Writing Tips with... Alastair Chisholm
- Audience questions
- Steven Lenton's illustrations
- Question time
- Chocolate Cake
- Questions
- Balloons!

















