{"id":7824,"date":"2026-07-10T15:19:16","date_gmt":"2026-07-10T13:19:16","guid":{"rendered":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/?p=7824"},"modified":"2026-09-03T10:21:45","modified_gmt":"2026-09-03T08:21:45","slug":"parcours-elea-methode-exo-concentration-en-masse","status":"publish","type":"post","link":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/2026\/07\/10\/parcours-elea-methode-exo-concentration-en-masse\/","title":{"rendered":"Parcours \u00c9l\u00e9a \u00ab\u00a0m\u00e9thode-exo\u00a0\u00bb\u00a0: concentration en masse"},"content":{"rendered":"\n<p>Le parcours \u00ab M\u00e9thode-Exo Concentration en masse \u00bb a \u00e9t\u00e9 \u00e9labor\u00e9 pour permettre aux \u00e9l\u00e8ves de seconde de s\u2019entrainer \u00e0 faire des exercices sur la concentration en masse et \u00e0 utiliser la relation litt\u00e9rale <em>c<\/em><sub>m<\/sub> = <em>m<\/em><sub>solut\u00e9<\/sub> \/ <em>V<\/em><sub>solution<\/sub><\/p>\n\n\n\n<p>Pour chaque exercice, la r\u00e9solution s\u2019effectue en plusieurs \u00e9tapes : appropriation de l\u2019\u00e9nonc\u00e9, conversions d\u2019unit\u00e9s, choix d\u2019une expression litt\u00e9rale adapt\u00e9e \u00e0 l\u2019\u00e9nonc\u00e9, application num\u00e9rique n\u00e9cessaire pour \u00e9crire le r\u00e9sultat (valeur num\u00e9rique avec unit\u00e9 adapt\u00e9e).<br>Chaque exercice est pr\u00e9sent\u00e9 sous la forme d\u2019activit\u00e9s interactives. Un feedback est donn\u00e9 apr\u00e8s chaque r\u00e9ponse.<\/p>\n\n\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-content\/uploads\/sites\/6\/2023\/07\/niveau.png\" alt=\"\" width=\"22\" height=\"20\" \/> <span style=\"color: #333399\"><strong><span style=\"color: #0d4798\">Seconde\u00a0 Physique Chimie \u00a0<\/span>\u00a0<\/strong><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-content\/uploads\/sites\/6\/2023\/09\/competence.png\" alt=\"\" width=\"22\" height=\"20\" \/> <span style=\"color: #0d4798\">Rep\u00e8re programme :\u00a0<br \/>\u00a0 \u00a0 \u00a0 <strong>Domaine 5 du CRCN\u00a0<\/strong>\/ 5.2 Environnement num\u00e9rique &#8211; \u00c9voluer dans un environnement num\u00e9rique<br \/>\u00a0 \u00a0 \u00a0 Constitution et transformation de la mati\u00e8re &#8211; Description et caract\u00e9risation de la mati\u00e8re \u00e0 l\u2019\u00e9chelle macroscopique &#8211; Les solutions aqueuses, un exemple de m\u00e9lange &#8211; Solvant, solut\u00e9, concentration en masse, concentration maximale d\u2019un solut\u00e9.<\/span><\/p>\n\n\n<h4 class=\"wp-block-heading\">Objectifs<\/h4>\n\n\n\n<ul style=\"background-color:#f6ffed\" class=\"wp-block-list has-background\">\n<li>Mettre en place une m\u00e9thode de r\u00e9solution d\u2019exercices sur la concentration en masse.<\/li>\n\n\n\n<li>R\u00e9viser les notions de masse de solut\u00e9, volume de solution, concentration en masse (notations, unit\u00e9s, expressions litt\u00e9rales, applications num\u00e9riques)<\/li>\n\n\n\n<li>Donner du sens aux manipulations alg\u00e9briques d\u2019une expression litt\u00e9rale<\/li>\n\n\n\n<li>Permettre aux \u00e9l\u00e8ves un travail en autonomie<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Parcours \u00c9l\u00e9a<\/h4>\n\n\n\n<p class=\"has-background\" style=\"background-color:#f1f4f5\">Comment tester facilement ce parcours ELEA ? Les enseignants acc\u00e8dent \u00e0 l&rsquo;espace \u00c9LEA de leur \u00e9tablissement via le sommaire de l&rsquo;ENT, puis retrouvent ce parcours dans le <strong>R\u00e9seau des concepteurs \u00c9LEA <\/strong>avec les mots-cl\u00e9s \u00ab Ac Clermont \u00bb et \u00ab Physique \u00bb. Pour int\u00e9grer le parcours dans leur espace \u00c9LEA, il suffit de le dupliquer.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Fiche ressource pour le professeur<\/h4>\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:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-content\/uploads\/sites\/6\/2026\/07\/FicheRessource-Methode-Exo-conc-seconde.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Contenu embarqu\u00e9 FicheRessource Methode-Exo-conc-seconde.\"><\/object><a id=\"wp-block-file--media-d0b57ac1-7de4-4117-989a-241f80df2a97\" href=\"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-content\/uploads\/sites\/6\/2026\/07\/FicheRessource-Methode-Exo-conc-seconde.pdf\">FicheRessource Methode-Exo-conc-seconde<\/a><a href=\"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-content\/uploads\/sites\/6\/2026\/07\/FicheRessource-Methode-Exo-conc-seconde.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-d0b57ac1-7de4-4117-989a-241f80df2a97\">T\u00e9l\u00e9charger<\/a><\/div>\n\n\n\n<p class=\"has-background\" style=\"background-color:#f1f9f9\">Les ressources cr\u00e9\u00e9es en 2025-2026 par les membres du p\u00f4le de comp\u00e9tences \u00ab\u00a0Physique-Chimie\u00a0\u00bb ont pour objectif d\u2019<strong>accompagner les \u00e9l\u00e8ves dans leurs apprentissages<\/strong>&nbsp;gr\u00e2ce \u00e0 des activit\u00e9s H5P et \u00c9l\u00e9a. <br>Responsable\/contact : Christine Bideux (<a href=\"mailto:christine.bideux@ac-clermont.fr\">christine.bideux@ac-clermont.fr)<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le parcours \u00ab M\u00e9thode-Exo Concentration en masse \u00bb a \u00e9t\u00e9 \u00e9labor\u00e9 pour permettre aux \u00e9l\u00e8ves de seconde de s\u2019entrainer \u00e0 faire des exercices sur la concentration en masse.<\/p>\n","protected":false},"author":59,"featured_media":7828,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_EventAllDay":false,"_EventTimezone":"","_EventStartDate":"","_EventEndDate":"","_EventStartDateUTC":"","_EventEndDateUTC":"","_EventShowMap":false,"_EventShowMapLink":false,"_EventURL":"","_EventCost":"","_EventCostDescription":"","_EventCurrencySymbol":"","_EventCurrencyCode":"","_EventCurrencyPosition":"","_EventDateTimeSeparator":"","_EventTimeRangeSeparator":"","_EventOrganizerID":[],"_EventVenueID":[],"_OrganizerEmail":"","_OrganizerPhone":"","_OrganizerWebsite":"","_VenueAddress":"","_VenueCity":"","_VenueCountry":"","_VenueProvince":"","_VenueState":"","_VenueZip":"","_VenuePhone":"","_VenueURL":"","_VenueStateProvince":"","_VenueLat":"","_VenueLng":"","_VenueShowMap":false,"_VenueShowMapLink":false,"footnotes":""},"categories":[50,59],"tags":[93,77],"class_list":{"0":"post-7824","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-physique-chimie","8":"category-ressources-poles","9":"tag-2025-2026","10":"tag-activite-elea","11":"czr-hentry"},"_links":{"self":[{"href":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-json\/wp\/v2\/posts\/7824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-json\/wp\/v2\/users\/59"}],"replies":[{"embeddable":true,"href":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-json\/wp\/v2\/comments?post=7824"}],"version-history":[{"count":1,"href":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-json\/wp\/v2\/posts\/7824\/revisions"}],"predecessor-version":[{"id":7867,"href":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-json\/wp\/v2\/posts\/7824\/revisions\/7867"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-json\/wp\/v2\/media\/7828"}],"wp:attachment":[{"href":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-json\/wp\/v2\/media?parent=7824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-json\/wp\/v2\/categories?post=7824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pedagogie.ac-clermont.fr\/numerique-educatif\/wp-json\/wp\/v2\/tags?post=7824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}