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Modeler des fractions Modeler des fractions Objectif

Modeler des fractions Objectif. Visualize fractions Objective

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Page 1: Modeler des fractions Objectif. Visualize fractions Objective

Modeler des fractionsModeler des fractionsObjectif

Page 2: Modeler des fractions Objectif. Visualize fractions Objective

Visualize fractionsVisualize fractionsObjective

Page 3: Modeler des fractions Objectif. Visualize fractions Objective

Enseigne moi les fractions…Enseigne moi les fractions…Définition, parties et types.

Page 4: Modeler des fractions Objectif. Visualize fractions Objective

Teach me fractions…Teach me fractions…Definitions, parts and types.

Page 5: Modeler des fractions Objectif. Visualize fractions Objective

Montre ce que tu sais faire!Montre ce que tu sais faire!

Page 6: Modeler des fractions Objectif. Visualize fractions Objective

Show what you can do!Show what you can do!

Page 7: Modeler des fractions Objectif. Visualize fractions Objective

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.

Page 8: Modeler des fractions Objectif. Visualize fractions Objective

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.

Page 9: Modeler des fractions Objectif. Visualize fractions Objective

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.

Page 10: Modeler des fractions Objectif. Visualize fractions Objective

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.

Page 11: Modeler des fractions Objectif. Visualize fractions Objective

Fractions impropresFractions impropres

Page 12: Modeler des fractions Objectif. Visualize fractions Objective

Improper fractionsImproper fractions

Page 13: Modeler des fractions Objectif. Visualize fractions Objective

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.

Page 14: Modeler des fractions Objectif. Visualize fractions Objective

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.

Page 15: Modeler des fractions Objectif. Visualize fractions Objective

Quelle fraction correspond au Quelle fraction correspond au model?model?

Page 16: Modeler des fractions Objectif. Visualize fractions Objective

What fraction matches the model?What fraction matches the model?

Page 17: Modeler des fractions Objectif. Visualize fractions Objective

Essayons ensembleEssayons ensemble45

12

43

810

76

Représente

Dénominateur 5

Numéateur 4

Propre ou impropre?

Propre

Page 18: Modeler des fractions Objectif. Visualize fractions Objective

Let’s try togetherLet’s try together45

12

43

810

76

Picture it

Dénominator 5

Numerator 4

Proper or improper

Proper

Page 19: Modeler des fractions Objectif. Visualize fractions Objective

Une dictée!!!! Sort une feuille!Une dictée!!!! Sort une feuille!

Page 20: Modeler des fractions Objectif. Visualize fractions Objective

A dictation!!!! Loose leaf!A dictation!!!! Loose leaf!

Page 21: Modeler des fractions Objectif. Visualize fractions Objective

Réponse \\ AnswersRéponse \\ Answers1. ¾2. ½3. 5/84. 8/55. 7/126. 5/107. 2/58. 19/309. 20/10010. 9/16

Page 22: Modeler des fractions Objectif. Visualize fractions Objective

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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