In which page the bookmark is?

A bookmark in a book
A bookmark in a book

In which page the bookmark is?

where the bookmark is
The number of page in which the bookmark has placed in

  • This 3-acts opera could be done as a group activity:
    • The teacher distributes books among students
    • In pairs, one students put the bookmark in a page of one book and ask to guess the page. The only provided information is the total number of pages of the book.
    • The take note of the answer and the page where the bookmark has put.
    • Swap the roles.
    • The best mean approximation wins
  • The previous activity could be modified introducing measuring with ruler the position of the bookmark and the width of the book
  • Posted on twitter [1]

References

[1] Bordoy, X. In which page the bookmark is? @Estimation180 #mtbos this is 3-act activity http://theque.somenxavier.xyz/content/3-acts/llibre-nombre-de-pagines.en/ …. 2016. https://twitter.com/somenxavier/status/720850261074321411.

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