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Question De Chaudières

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Pour 2$^{ère}$ cycle de l'élémentaire

Mise en situation

Voici 3 chaudières : une rouge, une bleue et une jaune. Chacune de ces chaudières peut contenir un maximum de 5 litres de liquide.
 
 

On verse une quantité différente de liquide dans chaque chaudière. Le liquide est mesuré avec exactitude en litres entiers.

Si on versait le liquide de la chaudière rouge dans la chaudière bleue, celui-ci contiendrait la même quantité de liquide que la chaudière jaune.

La moitié du liquide de la chaudière jaune est égale à deux fois la quantité de liquide de la chaudière rouge.

Question

Combien de liquide y a-t-il dans chacune des chaudières?

Source: Buckets of Thinking
 
Translated by Renée Michaud, Coordonnatrice et consultante de mathématiques et sciences, Consortium provincial francophone pour le perfectionnement professionnel, Calgary, Canada

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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