modeler des fractions objectif. visualize fractions objective
TRANSCRIPT
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Modeler des fractionsModeler des fractionsObjectif
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Visualize fractionsVisualize fractionsObjective
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Enseigne moi les fractions…Enseigne moi les fractions…Définition, parties et types.
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Teach me fractions…Teach me fractions…Definitions, parts and types.
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Montre ce que tu sais faire!Montre ce que tu sais faire!
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Show what you can do!Show what you can do!
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Jeu: pizza deluxeJeu: pizza deluxe Tous les morceaux de pizza sont éparpillés, face
contre table. Chacun son tour, on peut:
– Faire tourner la roulette et on trouver la fraction parmi les morceaux éparpillés. Le joueur peut garder le morceau si c’est la bonne fraction.
OU– Faire une transaction équitable (échanger 1 demi pour
2 quarts) Le premier joueur qui complète une pizza gagne. NB: Si un joueur a trop de pizza, il peut en
débuter une seconde mais on ne peut plus les mélanger.
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Game: pizza deluxeGame: pizza deluxe
All pizza slices are spread out face down on the table.
On a turn, one may: – Spin the roulette and find the selected piece. If the
piece picked is the right one, the player may keep it.OR
– Complete a fair exchange (ex: switch his half for 2 quarters)
The winner is the one with the 1st complete pizza***If a player has too much pizza, he must start a
new pizza that is never to be mixed or traded with the first one.
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FractionsFractions
Les nombres employés pour exprimer une fraction sont appelés les termes:– Le terme du haut est appelé le
NUMÉRATEUR: il indique combien de parties il y a.
– Le terme du bas s’appelle le DÉNOMINATEUR: il indique combien de parties il faut pour faire le tout.
Exemple:
2 ← numérateur3 ← dénominateur
Une fraction est la manière d’exprimer la partie d’un tout.
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FractionsFractions
The numbers used to express a fraction are called the terms of a fraction:– The top term is called the
NUMERATOR: it shows how many parts there are.
– The bottom part is the DENOMINATOR: it shows how many parts make the whole thing.
Example:
2 ← numerator3 ← denominator
A fraction is a way to express a part of a whole.
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Fractions impropresFractions impropres
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Improper fractionsImproper fractions
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Fraction: propre et impropreFraction: propre et impropre
FRACTION PROPRE
Une fraction où le numérateur est plus petit que le dénominateur.
Ex: 3 19 995 25
100
FRACTION IMPROPRE
Une fraction plus grande que 1: le numérateur est égal ou plus grand que le dénominateur.
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Proper vs. Improper fractionProper vs. Improper fraction
PROPER FRACTION
A fraction where the numerator is less than the denominator.
Ex: 3 19 995 25 100
IMPROPER FRACTION
A fraction greater than 1: the numerator is equal or greator than the numerator.
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Quelle fraction correspond au Quelle fraction correspond au model?model?
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What fraction matches the model?What fraction matches the model?
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Essayons ensembleEssayons ensemble45
12
43
810
76
Représente
Dénominateur 5
Numéateur 4
Propre ou impropre?
Propre
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Let’s try togetherLet’s try together45
12
43
810
76
Picture it
Dénominator 5
Numerator 4
Proper or improper
Proper
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Une dictée!!!! Sort une feuille!Une dictée!!!! Sort une feuille!
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A dictation!!!! Loose leaf!A dictation!!!! Loose leaf!
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Réponse \\ AnswersRéponse \\ Answers1. ¾2. ½3. 5/84. 8/55. 7/126. 5/107. 2/58. 19/309. 20/10010. 9/16
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Picture credit: Picture credit: http://etc.usf.edu/clipart/31900/31981/class_31981.htm Description: A classroom with children sitting, listening to their teacher.
Source: C. C. Long Home Geography for Primary Grades (New York: American Book Company, 1894)
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