Level: CM The book contains all the million integers written in numbers 1 through 1000 000 to 1000 because of numbers per page.
How many pages does this book?
References:
This is page 150 in "digital learning and problem solving CM2" team ERMEL Hatier
To work in this situation must be a few pages of this famous book. Courtesy of Marianne Frémin, a member of ERMEL team and creator of these pages, I can send them by mail to those who request it myself.
worked Skills:
- associate designation oral and written description (in figures) for the class numbers to millions
- comparing numbers, place them in a range
procedure possible:
- without mentioning the book a million, giving a different page for each student must write about
- sharing observations
- presentation of the book by the master (it contains the first 34 pages and the last)
- find the first or the last number of a given page, look on what page is a given number
- give the same page to all students and ask them to pinpoint the earliest possible on a particular number
- look how many pages the book contains one million
To view the results students can show them 2 reams of paper (500 pages each).
Extensions possible:
can find the number of reams of paper needed to make the book a billion. If all these reams were stacked on each other, the tower she obtained was as high as Mont Blanc?
In the album "1000 thousand million" there are many calculations on the concepts of a million, billion and one billion! "If a billion children were climbing over each other ... they go beyond the moon. "All calculations are explained very clearly at the end, we can remake them with students.
"1000 thousands of millions" by David M. Schwartz and Steven Kellogg in Circonflexe
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