{"id":1565,"date":"2016-08-17T00:12:30","date_gmt":"2016-08-16T23:12:30","guid":{"rendered":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/?p=1565"},"modified":"2023-05-23T15:33:54","modified_gmt":"2023-05-23T14:33:54","slug":"doubler-un-carre","status":"publish","type":"post","link":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/doubler-un-carre\/","title":{"rendered":"Doubler un carr\u00e9"},"content":{"rendered":"<p><strong><em>Probl\u00e8me :\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/em><\/strong><\/p>\n<p>Construire deux carr\u00e9s de telle sorte que l\u2019aire de l\u2019un soit le double de l\u2019aire de l\u2019autre.<\/p>\n<p>&nbsp;<\/p>\n<p><strong><em>Commentaire :\u00a0\u00a0\u00a0\u00a0 <\/em><\/strong><\/p>\n<p>Activit\u00e9 propos\u00e9e en narration de recherche.<\/p>\n<p>La plupart des \u00e9l\u00e8ves ont cherch\u00e9 une m\u00e9thode calculatoire : doubler la longueur du c\u00f4t\u00e9, multiplier par 1,5, utiliser une valeur approch\u00e9e de la racine carr\u00e9e. D\u2019autres ont utilis\u00e9 une m\u00e9thode g\u00e9om\u00e9trique, en d\u00e9coupant le carr\u00e9 de d\u00e9part en carr\u00e9s ou en triangles et en essayant de les doubler.<\/p>\n<p>&nbsp;<\/p>\n<p><strong><em>Source :\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/em><\/strong><\/p>\n<p><em>Les narrations de recherche de l\u2019\u00e9cole primaire au lyc\u00e9e<\/em> \u2013 IREM Montpellier<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-content\/uploads\/sites\/3\/2016\/08\/doubler_carre.docx\">Fiche \u00e9l\u00e8ve Doubler un carr\u00e9 word<\/a><\/p>\n<p><a href=\"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-content\/uploads\/sites\/3\/2016\/08\/doubler_carre.pdf\">Fiche \u00e9l\u00e8ve Doubler un carr\u00e9 pdf<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Probl\u00e8me :\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Construire deux carr\u00e9s de telle sorte que l\u2019aire de l\u2019un soit le double de l\u2019aire de l\u2019autre. &nbsp; Commentaire :\u00a0\u00a0\u00a0\u00a0 Activit\u00e9 propos\u00e9e en narration de recherche. La plupart des \u00e9l\u00e8ves ont cherch\u00e9 une m\u00e9thode calculatoire : doubler la longueur du c\u00f4t\u00e9, multiplier par 1,5, utiliser une valeur approch\u00e9e de la racine carr\u00e9e. D\u2019autres &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/doubler-un-carre\/\">Lire la suite<\/a><\/p>\n","protected":false},"author":351,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[23,22],"tags":[],"class_list":["post-1565","post","type-post","status-publish","format-standard","hentry","category-seconde","category-lycee","nodate","item-wrap"],"_links":{"self":[{"href":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-json\/wp\/v2\/posts\/1565","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-json\/wp\/v2\/users\/351"}],"replies":[{"embeddable":true,"href":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-json\/wp\/v2\/comments?post=1565"}],"version-history":[{"count":1,"href":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-json\/wp\/v2\/posts\/1565\/revisions"}],"predecessor-version":[{"id":1570,"href":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-json\/wp\/v2\/posts\/1565\/revisions\/1570"}],"wp:attachment":[{"href":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-json\/wp\/v2\/media?parent=1565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-json\/wp\/v2\/categories?post=1565"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ent2d.ac-bordeaux.fr\/disciplines\/mathematiques\/wp-json\/wp\/v2\/tags?post=1565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}