How An Infinite Hotel Ran Out Of Room
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From this lesson
- There are an infinite number of people, in an infinite number of rooms.
- If a bus shows up with a hundred people, you know exactly what to do just move everyone down a hundred rooms and put the new guests in their vacated rooms.
- So you can give each person on the infinite bus, a unique, odd numbered room.
- Then imagine you pull on the opposite ends of this line, straightening it out.
- How does the manager make room for the infinite bus and for the infinite number of infinite buses?
- The video shows that some infinities are bigger than others: did this idea surprise you?
Key words
sequencecountably infiniteto move downopposite endcharacterspreadsheetto flip
What you get
- The YouTube video stops by itself at the right moment: the student answers and the video goes on
- Gap fills, jumbled sentences, missing or wrong words and multiple choice, built from the real sentences of the video
- Key words with pictures, flashcards and a star to save the words to review
- Conversation questions before and after the video
Made by a teacher with PauseLearn, the free tool for lessons from YouTube videos, games and class challenges.