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            <title><![CDATA[Volumes et contenances]]></title>
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            <description><![CDATA[Découverte des unités de volumes, équivalence avec les unités de contenances, conversions.]]></description>
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            <media:title type="plain">Volumes et contenances</media:title>
            <media:description type="plain">Découverte des unités de volumes, équivalence avec les unités de contenances, conversions.</media:description>
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            <title><![CDATA[Montrer que deux grandeurs sont proportionnelles]]></title>
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            <description><![CDATA[Dans cette vidéo, tu vas apprendre à montrer que deux grandeurs sont ou ne sont pas proportionnelles.]]></description>
            <content:encoded><![CDATA[<p>Dans cette vidéo, tu vas apprendre à montrer que deux grandeurs sont ou ne sont pas proportionnelles.</p>
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            <media:title type="plain">Montrer que deux grandeurs sont proportionnelles</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas apprendre à montrer que deux grandeurs sont ou ne sont pas proportionnelles.</media:description>
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            <title><![CDATA[Proportionnalité : Utiliser la propriété d'additivité]]></title>
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            <pubDate>Sun, 20 Sep 2026 02:29:37 GMT</pubDate>
            <description><![CDATA[Dans cette vidéo, tu vas apprendre à compléter un tableau de proportionnalité en utilisant la propriété d'additivité, c'est à dire en faisant les somme ou la différences des valeurs déjà inscrites dans le tableau pour en calculer de nouvelles.]]></description>
            <content:encoded><![CDATA[<p>Dans cette vidéo, tu vas apprendre à compléter un tableau de proportionnalité en utilisant la propriété d'additivité, c'est à dire en faisant les somme ou la différences des valeurs déjà inscrites dans le tableau pour en calculer de nouvelles.</p>
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            <media:title type="plain">Proportionnalité : Utiliser la propriété d'additivité</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas apprendre à compléter un tableau de proportionnalité en utilisant la propriété d'additivité, c'est à dire en faisant les somme ou la différences des valeurs déjà inscrites dans le tableau pour en calculer de nouvelles.</media:description>
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            <title><![CDATA[Quotients égaux]]></title>
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            <pubDate>Sun, 20 Sep 2026 02:28:44 GMT</pubDate>
            <description><![CDATA[Niveau 4e : Dans cette vidéo, nous allons revoir comment réduire deux fractions au même dénominateur, comment montrer que deux fractions sont égales et comment simplifier une fraction afin de la rendre irréductible.]]></description>
            <content:encoded><![CDATA[<p>Niveau 4e : Dans cette vidéo, nous allons revoir comment réduire deux fractions au même dénominateur, comment montrer que deux fractions sont égales et comment simplifier une fraction afin de la rendre irréductible.</p>
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            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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            <media:description type="plain">Niveau 4e : Dans cette vidéo, nous allons revoir comment réduire deux fractions au même dénominateur, comment montrer que deux fractions sont égales et comment simplifier une fraction afin de la rendre irréductible.</media:description>
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            <title><![CDATA[Proportionnalité : La propriété d’homogénéité]]></title>
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            <media:title type="plain">Proportionnalité : La propriété d’homogénéité</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas apprendre à compléter un tableau de proportionnalité en utilisant la propriété d'homogénéité, c'est à dire en multipliant ou en divisant les valeurs d'une colonne du tableau par un même nombre non nul.</media:description>
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            <content:encoded><![CDATA[<p>Dans cette vidéo, tu vas apprendre à calculer une quatrième proportionnelle en utilisant un coefficient de proportionnalité.</p>
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            <media:title type="plain">Utiliser un coefficient de proportionnalité</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas apprendre à calculer une quatrième proportionnelle en utilisant un coefficient de proportionnalité.</media:description>
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            <media:title type="plain">Rédiger la solution d'un problème</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas découvrir un ensemble de règles que tu vas devoir respecter tout au long de l'année scolaire pour rédiger la solution d'un problème.</media:description>
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            <title><![CDATA[À la découverte du théorème de Pythagore]]></title>
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            <description><![CDATA[Rappel sur le théorème de Pythagore dans un contexte de parcours ludique accessible depuis la plateforme Éléa.]]></description>
            <content:encoded><![CDATA[<p>Rappel sur le théorème de Pythagore dans un contexte de parcours ludique accessible depuis la plateforme Éléa.</p>
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            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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            <media:title type="plain">À la découverte du théorème de Pythagore</media:title>
            <media:description type="plain">Rappel sur le théorème de Pythagore dans un contexte de parcours ludique accessible depuis la plateforme Éléa.</media:description>
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            <title><![CDATA[Tracer une médiatrice avec la règle et l'équerre]]></title>
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            <pubDate>Sun, 20 Sep 2026 02:19:20 GMT</pubDate>
            <description><![CDATA[Dans cette vidéo, tu vas apprendre à tracer la médiatrice d'un segment en utilisant ta règle et ton équerre. La méthode "au compas" sera présentée dans une autre vidéo.]]></description>
            <content:encoded><![CDATA[<p>Dans cette vidéo, tu vas apprendre à tracer la médiatrice d'un segment en utilisant ta règle et ton équerre. La méthode "au compas" sera présentée dans une autre vidéo.</p>
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            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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            <media:title type="plain">Tracer une médiatrice avec la règle et l'équerre</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas apprendre à tracer la médiatrice d'un segment en utilisant ta règle et ton équerre. La méthode "au compas" sera présentée dans une autre vidéo.</media:description>
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            <title><![CDATA[Multiplier des nombres entiers]]></title>
            <link>https://tube-sciences-technologies.apps.education.fr/w/3m4ChuMKo8SUPZVjAXZT2S</link>
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            <pubDate>Sun, 20 Sep 2026 02:19:18 GMT</pubDate>
            <description><![CDATA[Dans cette vidéo, nous allons revoir comment calculer le produit de deux nombres entiers. Et pour cela, il n'y a pas de secret : en plus de la méthode, tes tables tu dois connaître, jeune apprenti 😉]]></description>
            <content:encoded><![CDATA[<p>Dans cette vidéo, nous allons revoir comment calculer le produit de deux nombres entiers. Et pour cela, il n'y a pas de secret : en plus de la méthode, tes tables tu dois connaître, jeune apprenti 😉</p>
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            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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            <media:description type="plain">Dans cette vidéo, nous allons revoir comment calculer le produit de deux nombres entiers. Et pour cela, il n'y a pas de secret : en plus de la méthode, tes tables tu dois connaître, jeune apprenti 😉</media:description>
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            <title><![CDATA[Tracer un rectangle]]></title>
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            <pubDate>Sun, 20 Sep 2026 02:19:17 GMT</pubDate>
            <description><![CDATA[Dans cette vidéo, tu vas apprendre comment tracer un rectangle en utilisant ta règle et ton équerre.]]></description>
            <content:encoded><![CDATA[<p>Dans cette vidéo, tu vas apprendre comment tracer un rectangle en utilisant ta règle et ton équerre.</p>
]]></content:encoded>
            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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            <media:title type="plain">Tracer un rectangle</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas apprendre comment tracer un rectangle en utilisant ta règle et ton équerre.</media:description>
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            <title><![CDATA[Présentation de l'ENT Arsène76]]></title>
            <link>https://tube-sciences-technologies.apps.education.fr/w/fbJdzUhXFrzZWLo4P3Gufq</link>
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            <pubDate>Sun, 20 Sep 2026 02:19:14 GMT</pubDate>
            <description><![CDATA[Cette vidéo va te permettre de découvrir les différentes fonctionnalités de l'ENT Arsène 76.]]></description>
            <content:encoded><![CDATA[<p>Cette vidéo va te permettre de découvrir les différentes fonctionnalités de l'ENT Arsène 76.</p>
]]></content:encoded>
            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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            <media:title type="plain">Présentation de l'ENT Arsène76</media:title>
            <media:description type="plain">Cette vidéo va te permettre de découvrir les différentes fonctionnalités de l'ENT Arsène 76.</media:description>
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            <title><![CDATA[Tracer un carré]]></title>
            <link>https://tube-sciences-technologies.apps.education.fr/w/boyNMAv19S2qqyVT9TZGFN</link>
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            <pubDate>Sun, 20 Sep 2026 02:19:13 GMT</pubDate>
            <description><![CDATA[Dans cette vidéo, tu vas apprendre à tracer un carré en utilisant ta règle et ton équerre.]]></description>
            <content:encoded><![CDATA[<p>Dans cette vidéo, tu vas apprendre à tracer un carré en utilisant ta règle et ton équerre.</p>
]]></content:encoded>
            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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            <media:title type="plain">Tracer un carré</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas apprendre à tracer un carré en utilisant ta règle et ton équerre.</media:description>
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            <title><![CDATA[Construire un triangle Méthode 3]]></title>
            <link>https://tube-sciences-technologies.apps.education.fr/w/jRGdTKuoeMza65dwxPt8qB</link>
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            <pubDate>Sun, 20 Sep 2026 02:19:11 GMT</pubDate>
            <description><![CDATA[Dans cette vidéo, tu vas apprendre comment construire un triangle lorsque tu connais la longueur d'un de ses côtés et la mesure de deux de ses angles.]]></description>
            <content:encoded><![CDATA[<p>Dans cette vidéo, tu vas apprendre comment construire un triangle lorsque tu connais la longueur d'un de ses côtés et la mesure de deux de ses angles.</p>
]]></content:encoded>
            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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            <media:title type="plain">Construire un triangle Méthode 3</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas apprendre comment construire un triangle lorsque tu connais la longueur d'un de ses côtés et la mesure de deux de ses angles.</media:description>
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            <description><![CDATA[Dans cette vidéo, tu vas apprendre comment construire un triangle lorsque tu connais la longueur de deux de ses côtés ainsi que la mesure de l'un de ses angles.]]></description>
            <content:encoded><![CDATA[<p>Dans cette vidéo, tu vas apprendre comment construire un triangle lorsque tu connais la longueur de deux de ses côtés ainsi que la mesure de l'un de ses angles.</p>
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            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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            <media:title type="plain">Construire un triangle Méthode 2</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas apprendre comment construire un triangle lorsque tu connais la longueur de deux de ses côtés ainsi que la mesure de l'un de ses angles.</media:description>
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            <title><![CDATA[Construire un triangle Méthode 1]]></title>
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            <pubDate>Sun, 20 Sep 2026 02:19:08 GMT</pubDate>
            <description><![CDATA[Dans cette vidéo, tu vas apprendre à construire un triangle dont on connaît la longueur des trois côtés.]]></description>
            <content:encoded><![CDATA[<p>Dans cette vidéo, tu vas apprendre à construire un triangle dont on connaît la longueur des trois côtés.</p>
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            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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            <media:title type="plain">Construire un triangle Méthode 1</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas apprendre à construire un triangle dont on connaît la longueur des trois côtés.</media:description>
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            <title><![CDATA[Tracer des droites perpendiculaires]]></title>
            <link>https://tube-sciences-technologies.apps.education.fr/w/pXsYE5AWguU6soKYDwBLmw</link>
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            <pubDate>Sun, 20 Sep 2026 02:19:06 GMT</pubDate>
            <description><![CDATA[Dans cette vidéo, tu vas apprendre à utiliser ton équerre pour tracer des droites perpendiculaires.]]></description>
            <content:encoded><![CDATA[<p>Dans cette vidéo, tu vas apprendre à utiliser ton équerre pour tracer des droites perpendiculaires.</p>
]]></content:encoded>
            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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            <media:title type="plain">Tracer des droites perpendiculaires</media:title>
            <media:description type="plain">Dans cette vidéo, tu vas apprendre à utiliser ton équerre pour tracer des droites perpendiculaires.</media:description>
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            <title><![CDATA[Additionner des nombres relatifs]]></title>
            <link>https://tube-sciences-technologies.apps.education.fr/w/95HYgx7HCQe5N5qtkitdgc</link>
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            <pubDate>Sun, 20 Sep 2026 02:19:05 GMT</pubDate>
            <description><![CDATA[Dans cette vidéo, tu vas apprendre à additionner des nombres relatifs en utilisant la méthode des guerriers.]]></description>
            <content:encoded><![CDATA[<p>Dans cette vidéo, tu vas apprendre à additionner des nombres relatifs en utilisant la méthode des guerriers.</p>
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            <dc:creator> Les maths à Saint-Nicolas</dc:creator>
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