import work from year 2016-2017

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Benjamin Bertrand
2017-06-16 09:49:23 +03:00
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\documentclass[a5paper,12pt]{/media/documents/Cours/Prof/Enseignements/2016-2017/tools/style/classExo}
\usepackage{/media/documents/Cours/Prof/Enseignements/2016-2017/theme}
% Title Page
\titre{Fraction et forme décimale - Exercices}
% \seconde \premiereS \PSTMG \TSTMG
\classe{Cinquième}
\date{Mai 2017}
%\geometry{left=5mm,right=5mm, bottom= 5mm, top=5mm}
\pagestyle{empty}
\newcommand{\lexo}{%
\setcounter{exo}{0}
\begin{Exo}[Problèmes qui se ressemblent]
Sans calculatrice répondre aux problèmes suivants.
\begin{enumerate}
\item Bob partage de manière équitable ses 17 billes entre ses 7 amis. Quelle est la part de chacun ?
\item Abdou peut porter 7litres d'eau par voyage. Combien de voyage devra-t-il faire pour transporter 17litres?
\item Bill partage de manière équitable 17 euros entre 7 personnes. Quelle est la part de chacun ?
\item Un segment $[AB]$ de longueur 17 unités est partagé en 7 segments de même longueur.
\includegraphics[scale=0.9]{./fig/segmentAB}
Quelle est la longueur de chacun des 7 segments ?
\end{enumerate}
\end{Exo}
}
\begin{document}
\lexo
\vfill
\lexo
\end{document}
%%% Local Variables:
%%% mode: latex
%%% TeX-master: "master"
%%% End:

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Notes sur la construction et l'égalité entre fractions pour les 5e
#####################################################################
:date: 2017-04-28
:modified: 2017-04-28
:tags: Nombres et calculs, Fraction
:category: 5e
:authors: Bertrand Benjamin
:summary: Le chapitre la construction de fraction et de l'égalité entre fractions.
Étape 1
-------
À partir de `dessins <./surface partagee.pdf>`_, on retrouve les fractions associées. C'est le moment de voir quelques égalités entre les fractions.
On les laisse toutes les chercher puis on commence à corriger la première (réajustement pour les plus faibles).
Défis pour les 4 dernières:
- Figure 4: Trouver une fraction avec dénominateur 80
- Figure 5: Trouver une fraction avec le plus grand dénominateur
- Figure 6 et 7: fraction avec le plus petit dénominateur.
Les vacances sont arrivées un peu vite. Il faut donc reprendre après! C'est l'occasion d'ajouter les fractions de longueurs.
- `Surfaces et longueurs partagées présentation <./surface_longueurs_partagees.pdf>`_
- `Surfaces et longueurs partagées élèves <./surface_longueurs_partagees_eleves.pdf>`_
Étape 2
-------
La séquence 1 a été l'occasion d'écrire des égalités a/b = ca/cb. On cherche à remplir les pointillés dans a/b = .../cb