Modeler des fractions Objectif.

Présentation au sujet: "Modeler des fractions Objectif."— Transcription de la présentation:

1 Modeler des fractions Objectif

2 Visualize fractions Objective

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

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

5 Montre ce que tu sais faire!

6 Show what you can do!

7 Jeu: 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.

8 Game: 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.

9 Fractions Une fraction est la manière d’exprimer la partie d’un tout.
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 ← numérateur 3 ← dénominateur

10 Fractions A fraction is a way to express a part of a whole. Example:
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 ← numerator 3 ← denominator

11 Fractions impropres

12 Improper fractions

13 Fraction: propre et impropre
Une fraction où le numérateur est plus petit que le dénominateur. Ex: FRACTION IMPROPRE Une fraction plus grande que 1: le numérateur est égal ou plus grand que le dénominateur.

14 Proper vs. Improper fraction
A fraction where the numerator is less than the denominator. Ex: IMPROPER FRACTION A fraction greater than 1: the numerator is equal or greator than the numerator.

15 Quelle fraction correspond au model?

16 What fraction matches the model?

17 Essayons ensemble 4 5 1 2 3 8 10 7 6 Représente Dénominateur Numéateur
Propre ou impropre? Propre

18 Let’s try together 4 5 1 2 3 8 10 7 6 Picture it Dénominator Numerator
Proper or improper Proper

19 Une dictée!!!! Sort une feuille!

20 A dictation!!!! Loose leaf!

21 Réponse \\ Answers 5/8 8/5 7/12 5/10 2/5 19/30 20/100 9/16

22 Picture credit: http://etc.usf.edu/clipart/31900/31981/class_31981.htm
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