Homepage

Accessibility links

  • Skip to content
  • Accessibility Help
BBC Account
Notifications
  • Home
  • News
  • Sport
  • Weather
  • iPlayer
  • Sounds
  • Bitesize
  • CBeebies
  • CBBC
  • Food
  • Home
  • News
  • Sport
  • Business
  • Innovation
  • Culture
  • Travel
  • Earth
  • Video
  • Live
More menu
Search BBC
  • Home
  • News
  • Sport
  • Weather
  • iPlayer
  • Sounds
  • Bitesize
  • CBeebies
  • CBBC
  • Food
  • Home
  • News
  • Sport
  • Business
  • Innovation
  • Culture
  • Travel
  • Earth
  • Video
  • Live
Close menu
BBC Scotland
Authors Live
  • Home
  • Events (2010 – present)
  • About Authors Live
  • Authors Live on iPlayer
  • Learn at BBC Scotland

Audio & Video

You must enable JavaScript to play content
Beat the Calculator
View More From Kjartan Poskitt
Kjartan Poskitt proves what looks complicated can be simple.
  1. Beat the Calculator
    02:54
    Beat the Calculator
    View More From Kjartan Poskitt
  2. 1089
    06:56
    1089
    View More From Kjartan Poskitt
  3. Perfect pentagon
    04:14
    Perfect pentagon
    View More From Kjartan Poskitt
  4. Fabulous flexagon
    02:05
    Fabulous flexagon
    View More From Kjartan Poskitt
  5. Making Cubes
    05:26
    Making Cubes
    View More From Kjartan Poskitt
  6. Prime number pizza
    04:24
    Prime number pizza
    View More From Kjartan Poskitt
  7. Numerical masterclass
    03:20
    Numerical masterclass
    View More From Kjartan Poskitt
  8. Q&A with Kjartan Poskitt
    05:19
    Q&A with Kjartan Poskitt
    View More From Kjartan Poskitt
  9. Books and confidence
    01:08
    Books and confidence
  10. Konnie’s Love of Science
    02:32
    Konnie’s Love of Science
  11. Making the change
    03:33
    Making the change
  12. Don't Kvetch
    01:55
    Don't Kvetch
  13. There's Broccoli in my Ice Cream! - Part 2
    04:25
    There's Broccoli in my Ice Cream! - Part 2
  14. How to draw a cheetah
    07:21
    How to draw a cheetah
  15. Weather and climate
    00:56
    Weather and climate
  16. Questions from West Calder High School
    05:42
    Questions from West Calder High School
  17. What Can Boys Learn From This Novel?
    03:02
    What Can Boys Learn From This Novel?
  18. A question from Freya.
    01:00
    A question from Freya.
  19. Now playing
    Up next
  • Cymraeg
  • Gàidhlig
  • Gaeilge

Explore the BBC

  • Home
  • News
  • Sport
  • Weather
  • iPlayer
  • Sounds
  • Bitesize
  • CBeebies
  • CBBC
  • Food
  • Home
  • News
  • Sport
  • Business
  • Innovation
  • Culture
  • Travel
  • Earth
  • Video
  • Live
  • Terms of Use
  • About the BBC
  • Privacy Policy
  • Privacy Policy
  • Cookies
  • Cookies
  • Accessibility Help
  • Parental Guidance
  • Contact the BBC
  • Make an editorial complaint
  • BBC emails for you
  • Advertise with us
Copyright © 2026 BBC. The BBC is not responsible for the content of external sites. Read about our approach to external linking.

You might also like:

news | sport | weather | worklife | travel | future | culture | world | business | technology