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# Objectif 4 - Echelles (Proportionnalité) <div class="row"> <div class="col-md-6"> :::success ### Télécharger les documents 📎 [Fiche de cours](https://nuage03.apps.education.fr/index.php/s/D3Z4JNJd4PsAw7k) :books: [Devoirs maison : Automatismes](https://coopmaths.fr/alea/?uuid=edb61&id=5P13&n=2&d=10&s=4&cd=1&v=confeleve&v=eleve&title=Automatismes&es=021100) <img src="https://pbs.twimg.com/profile_images/852661770036535296/oYcD0Q6W_400x400.jpg" width="30" alt="latex"> [source LaTeX](https://nuage03.apps.education.fr/index.php/s/o9Bj6cpebcWf3Ps) ::: </div> <div class="col-md-6"> ::: danger ### Vidéos #### Utiliser une échelle <p><iframe allowfullscreen="" frameborder="0" src="https://www.youtube.com/embed/-nKF5P_xxyQ?wmode=transparent" title="YouTube video player" width="100%"></iframe></p> #### Calculer une échelle <p><iframe allowfullscreen="" frameborder="0" src="https://www.youtube.com/embed/82qxwdhWYq8?wmode=transparent" title="YouTube video player" width="100%"></iframe></p> ::: </div></div> :::warning ### S'exercer <p><iframe allowfullscreen="true" mozallowfullscreen="true" src="https://learningapps.org/watch?app=2502004" style="border:0px;width:100%;height:500px;" webkitallowfullscreen="true"></iframe></p> ---- <p><iframe allowfullscreen="true" mozallowfullscreen="true" src="https://learningapps.org/watch?app=9354454" style="border:0px;width:100%;height:500px;" webkitallowfullscreen="true"></iframe></p> :::