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Modeler des fractionsModeler des fractionsObjectif
Visualize fractionsVisualize fractionsObjective
Enseigne moi les fractions…Enseigne moi les fractions…Définition, parties et types.
Teach me fractions…Teach me fractions…Definitions, parts and types.
Montre ce que tu sais faire!Montre ce que tu sais faire!
Show what you can do!Show what you can do!
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.
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.
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.
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.
Fractions impropresFractions impropres
Improper fractionsImproper fractions
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.
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.
Quelle fraction correspond au Quelle fraction correspond au model?model?
What fraction matches the model?What fraction matches the model?
Essayons ensembleEssayons ensemble45
12
43
810
76
Représente
Dénominateur 5
Numéateur 4
Propre ou impropre?
Propre
Let’s try togetherLet’s try together45
12
43
810
76
Picture it
Dénominator 5
Numerator 4
Proper or improper
Proper
Une dictée!!!! Sort une feuille!Une dictée!!!! Sort une feuille!
A dictation!!!! Loose leaf!A dictation!!!! Loose leaf!
Réponse \\ AnswersRéponse \\ Answers1. ¾2. ½3. 5/84. 8/55. 7/126. 5/107. 2/58. 19/309. 20/10010. 9/16
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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