Maths
Two 10-inch pizzas or one 16-inch?
Ask out loud. The blackboard settles it.
Inside the film
What it shows
Two 10-inch pizzas or one 16-inch? The question is asked out loud and the blackboard settles it: two 10-inch pizzas are 2 × π × 5², about 157 square inches, while one 16-inch pizza is π × 8², about 201. The one bigger pizza is more pizza, because area grows with the square of the radius.
The DuckyHelper part
In this film, it works the steps out on the blackboard and you ask out loud instead of typing. That is DuckyHelper on any screen: press one key in any app and ask.
- Press fn on a Mac, or Ctrl+Shift+Space on Windows and Linux, in any app.
- Ask your question out loud, the way you would ask a person next to you.
- Watch it explain on your screen or on the blackboard, then answer its question back.
