{"id":8076,"date":"2026-10-23T17:16:40","date_gmt":"2026-10-23T17:16:40","guid":{"rendered":"https:\/\/portaileduc.net\/website\/?p=8076"},"modified":"2026-11-02T15:45:28","modified_gmt":"2026-11-02T15:45:28","slug":"multiplicasteam-les-multiplications-du-monde-entier","status":"publish","type":"post","link":"https:\/\/portaileduc.net\/website\/multiplicasteam-les-multiplications-du-monde-entier\/","title":{"rendered":"MultiplicaSTEAM : les multiplications du monde entier"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">On ne multiplie pas partout de la m\u00eame fa\u00e7on ! Dans cette fiche du projet TeachInSTEAM, chaque groupe enqu\u00eate sur une <strong>m\u00e9thode de multiplication traditionnelle<\/strong> li\u00e9e \u00e0 une culture, la pr\u00e9sente \u00e0 la classe, puis tout le monde la met en pratique. Math\u00e9matiques, histoire et cultures du monde se rencontrent.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-995f960e wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\">En bref<\/h2>\n\n\n\n<ul class=\"wp-block-list pe-encadre\">\n<li><strong>Objectifs<\/strong> : d\u00e9couvrir, appliquer et comparer des m\u00e9thodes de multiplication issues de diff\u00e9rentes cultures.<\/li>\n\n\n\n<li><strong>Dur\u00e9e<\/strong> : environ 2 heures.<\/li>\n\n\n\n<li><strong>Groupes<\/strong> : 3 \u00e0 5 personnes.<\/li>\n\n\n\n<li><strong>Mat\u00e9riel<\/strong> : papier et crayons, fiches de pr\u00e9sentation des m\u00e9thodes, acc\u00e8s \u00e0 des livres ou \u00e0 Internet, tableau ou paperboard.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Les m\u00e9thodes pr\u00e9sent\u00e9es<\/h2>\n\n\n\n<p class=\"pe-encadre wp-block-paragraph\">La fiche r\u00e9sume chaque m\u00e9thode : <strong>\u00e9gyptienne<\/strong> (d\u00e9composition en puissances de 2), <strong>maya<\/strong> (base 20), <strong>russe ou paysanne<\/strong> (diviser par 2, doubler, additionner), <strong>chinoise<\/strong> (lignes et intersections), <strong>babylonienne<\/strong> (tables sur tablettes cun\u00e9iformes), <strong>indienne v\u00e9dique<\/strong>, <strong>japonaise<\/strong> et <strong>azt\u00e8que<\/strong>.<\/p>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9roulement<\/h2>\n\n\n\n<ol class=\"wp-block-list pe-encadre\">\n<li><strong>Introduction (10 min)<\/strong> et <strong>attribution des m\u00e9thodes (5 min)<\/strong>.<\/li>\n\n\n\n<li><strong>Recherche en groupes (30 min)<\/strong> : histoire, culture et fonctionnement de la m\u00e9thode.<\/li>\n\n\n\n<li><strong>Pr\u00e9paration des pr\u00e9sentations (15 min)<\/strong> : affiche ou diaporama avec des exemples.<\/li>\n\n\n\n<li><strong>Partage en pl\u00e9ni\u00e8re (30 min)<\/strong> : 5 minutes par groupe, puis comparaison des m\u00e9thodes.<\/li>\n\n\n\n<li><strong>Mise en application (30 min)<\/strong> : r\u00e9soudre des probl\u00e8mes avec la m\u00e9thode maya ou russe, par exemple.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">La fiche \u00e0 t\u00e9l\u00e9charger<\/h2>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/Fiche-3-MULTIPLICASTEAM.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Contenu embarqu\u00e9 Fiche 3 - MULTIPLICASTEAM.\"><\/object><a id=\"wp-block-file--media-8066\" href=\"https:\/\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/Fiche-3-MULTIPLICASTEAM.pdf\">Fiche 3 &#8211; MULTIPLICASTEAM<\/a><a href=\"https:\/\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/Fiche-3-MULTIPLICASTEAM.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-8066\">T\u00e9l\u00e9charger<\/a><\/div>\n\n\n\n<p class=\"pe-lire-aussi wp-block-paragraph\">Fiche issue du recueil <a href=\"https:\/\/portaileduc.net\/website\/teachinsteam-dix-fiches-pedagogiques-pour-experimenter-lapproche-steam\/\">TeachInSTEAM : dix fiches pour pratiquer l&rsquo;approche STEAM<\/a>, sous licence CC BY-NC-SA.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une fiche TeachInSTEAM pour d\u00e9couvrir les m\u00e9thodes de multiplication \u00e9gyptienne, maya, russe, chinoise, indienne&#8230; en groupes, puis les pr\u00e9senter et les appliquer. Environ 2 heures.<\/p>\n","protected":false},"author":2,"featured_media":8074,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","jetpack_post_was_ever_published":false},"categories":[237,118],"tags":[291,303,321,324],"class_list":["post-8076","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-steam","category-mathematiques","tag-guide-et-dossier-pedagogique","tag-mathematiques","tag-histoire-geographie","tag-pedagogies-actives"],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6aRPV-26g","jetpack-related-posts":[{"id":8075,"url":"https:\/\/portaileduc.net\/website\/mayosteam-la-chimie-de-la-mayonnaise-en-classe\/","url_meta":{"origin":8076,"position":0},"title":"MayoSTEAM : la chimie de la mayonnaise en classe","author":"Maxime Duquesnoy","date":"23 octobre 2026","format":false,"excerpt":"Une fiche TeachInSTEAM pour cr\u00e9er sa propre mayonnaise en groupe : chimie des aliments, calcul des proportions, cr\u00e9ativit\u00e9 et pr\u00e9sentation. Environ 2 heures, par groupes de 3.","rel":"","context":"Dans &quot;STEAM&quot;","block_context":{"text":"STEAM","link":"https:\/\/portaileduc.net\/website\/category\/domaines-disciplines\/steam\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":8077,"url":"https:\/\/portaileduc.net\/website\/voyage-interactif-ecrire-une-histoire-dont-vous-etes-le-heros\/","url_meta":{"origin":8076,"position":1},"title":"Voyage interactif : cr\u00e9er une histoire \u00e0 choix multiples","author":"Maxime Duquesnoy","date":"23 octobre 2026","format":false,"excerpt":"Une fiche TeachInSTEAM pour \u00e9crire collectivement une histoire interactive \u00e0 embranchements, puis la transposer dans une application comme Moiki. Environ 3 \u00e0 4 heures.","rel":"","context":"Dans &quot;STEAM&quot;","block_context":{"text":"STEAM","link":"https:\/\/portaileduc.net\/website\/category\/domaines-disciplines\/steam\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":8078,"url":"https:\/\/portaileduc.net\/website\/mission-lego-steam-des-defis-dingenierie-en-briques\/","url_meta":{"origin":8076,"position":2},"title":"Mission LEGO STEAM : des d\u00e9fis d&rsquo;ing\u00e9nierie en briques","author":"Maxime Duquesnoy","date":"23 octobre 2026","format":false,"excerpt":"Une fiche TeachInSTEAM pour relever des d\u00e9fis d'ing\u00e9nierie avec des briques LEGO : tour la plus haute, pont r\u00e9sistant, circuit de billes, codage binaire... Environ 2 \u00e0 3 heures.","rel":"","context":"Dans &quot;STEAM&quot;","block_context":{"text":"STEAM","link":"https:\/\/portaileduc.net\/website\/category\/domaines-disciplines\/steam\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":8079,"url":"https:\/\/portaileduc.net\/website\/le-cafe-des-steam-un-world-cafe-contre-les-stereotypes-de-genre\/","url_meta":{"origin":8076,"position":3},"title":"Caf\u00e9 des STEAM : un world caf\u00e9 contre les st\u00e9r\u00e9otypes","author":"Maxime Duquesnoy","date":"23 octobre 2026","format":false,"excerpt":"Une fiche TeachInSTEAM pour animer un world caf\u00e9 sur les STEAM et les st\u00e9r\u00e9otypes de genre : tables th\u00e9matiques, rotations, synth\u00e8se et plan d'actions. Environ 2 heures.","rel":"","context":"Dans &quot;STEAM&quot;","block_context":{"text":"STEAM","link":"https:\/\/portaileduc.net\/website\/category\/domaines-disciplines\/steam\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":8083,"url":"https:\/\/portaileduc.net\/website\/lapbooksteam-creer-un-lapbook-sur-un-theme-scientifique\/","url_meta":{"origin":8076,"position":4},"title":"LapbookSTEAM : cr\u00e9er un lapbook sur un th\u00e8me scientifique","author":"Maxime Duquesnoy","date":"23 octobre 2026","format":false,"excerpt":"Une fiche TeachInSTEAM pour r\u00e9aliser un lapbook sur un th\u00e8me STEAM (espace, \u00e9nergies renouvelables, robotique, cycle de l'eau, architecture) : recherche, synth\u00e8se et pr\u00e9sentation.","rel":"","context":"Dans &quot;STEAM&quot;","block_context":{"text":"STEAM","link":"https:\/\/portaileduc.net\/website\/category\/domaines-disciplines\/steam\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":8082,"url":"https:\/\/portaileduc.net\/website\/pacmansteam-apprendre-a-coder-avec-un-jeu-de-plateau\/","url_meta":{"origin":8076,"position":5},"title":"PacmanSTEAM : apprendre \u00e0 coder avec un jeu de plateau","author":"Maxime Duquesnoy","date":"23 octobre 2026","format":false,"excerpt":"Une fiche TeachInSTEAM qui d\u00e9tourne le jeu de plateau Pac-Man pour d\u00e9couvrir le code et les variables sans \u00e9cran, avec 40 cartes actions \u00e0 imprimer.","rel":"","context":"Dans &quot;STEAM&quot;","block_context":{"text":"STEAM","link":"https:\/\/portaileduc.net\/website\/category\/domaines-disciplines\/steam\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_likes_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/ImageTeachInSTEAM.png?fit=798%2C448&ssl=1","_links":{"self":[{"href":"https:\/\/portaileduc.net\/website\/wp-json\/wp\/v2\/posts\/8076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/portaileduc.net\/website\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/portaileduc.net\/website\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/portaileduc.net\/website\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/portaileduc.net\/website\/wp-json\/wp\/v2\/comments?post=8076"}],"version-history":[{"count":2,"href":"https:\/\/portaileduc.net\/website\/wp-json\/wp\/v2\/posts\/8076\/revisions"}],"predecessor-version":[{"id":9075,"href":"https:\/\/portaileduc.net\/website\/wp-json\/wp\/v2\/posts\/8076\/revisions\/9075"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/portaileduc.net\/website\/wp-json\/wp\/v2\/media\/8074"}],"wp:attachment":[{"href":"https:\/\/portaileduc.net\/website\/wp-json\/wp\/v2\/media?parent=8076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/portaileduc.net\/website\/wp-json\/wp\/v2\/categories?post=8076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/portaileduc.net\/website\/wp-json\/wp\/v2\/tags?post=8076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}