{"id":19381,"date":"2021-06-09T09:24:52","date_gmt":"2021-06-09T07:24:52","guid":{"rendered":"http:\/\/agora.xtec.cat\/ieslaromanica\/?p=19381"},"modified":"2021-06-09T09:28:41","modified_gmt":"2021-06-09T07:28:41","slug":"enginyem-nos-un-pont","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/ieslaromanica\/general\/enginyem-nos-un-pont\/","title":{"rendered":"Enginyem-nos un pont!"},"content":{"rendered":"

Activitat “de taller, sense taller” feta a tecnologia de 3r.<\/p>\n

Objectiu: dissenyar i construir un pont que salvi una llum de 40cm, amb un sol full A4 de cartolina\u00a0i cola de barra.<\/p>\n

La clau estava en transformar el full de cartolina en tires que, un cop plegades formant perfils estructurals en forma de L (angulars), esdevenen elements que poden resistir esfor\u00e7os de compressi\u00f3 i de tracci\u00f3. Per estalviar material, si hi ha elements que sabem que aniran a tracci\u00f3, es poden simplificar i ser una sola tira de cartolina.<\/p>\n

Amb l’activitat, que ha durat entre 6 i 8 hores, els alumnes han treballat la representaci\u00f3 gr\u00e0fica t\u00e8cnica d’objectes, els conceptes b\u00e0sics que hi ha a l’entorn d’aquestes estructures, el repte de fer un disseny amb uns condicionants (la dist\u00e0ncia a salvar, la limitaci\u00f3 de material i la necessitat de crear una estructura m\u00ednimament\u00a0resistent) i l’execuci\u00f3 material de l’estructura, tot un repte per a dits jovenets m\u00e9s avesats a fregar pantalles t\u00e0ctils que a retallar i enganxar.<\/p>\n\n\n\n
\"\"<\/a><\/td>\n\"\"<\/a><\/td>\n\"\"<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Alguns dels ponts han suportat pesos d’uns 200g (en forma de rotllos de paper de mans o d’ampolles de gel de mans… tan\u00a0en boga aquest curs!) Si es t\u00e9 en compte que un full de cartolina ronda els 12g… d\u00e9u-n’hi-do de com de resistent pot ser un material humil si se’l disposa de certes maneres aprofitant els coneixements t\u00e8cnics. Que d’aix\u00f2 anava la cosa. Una salutaci\u00f3 des de tecno!<\/p>\n","protected":false},"excerpt":{"rendered":"

Activitat “de taller, sense taller” feta a tecnologia de 3r.
\nObjectiu: dissenyar i construir un pont que salvi una llum de 40cm, amb un sol full A4 de cartolina\u00a0i cola de barra.
\nLa clau estava en transformar el full de cartolina en tires que, un cop plegades… Llegeix m\u00e9s\u00bb<\/a><\/p>\n","protected":false},"author":3,"featured_media":19387,"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":[6,1,29],"tags":[322,343,216],"class_list":["post-19381","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-eso-3","category-general","category-portada","tag-ambit-artistic-i-tecnologic","tag-curs-2020-2021","tag-departament-de-tecnologies"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/ieslaromanica\/wp-json\/wp\/v2\/posts\/19381","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/ieslaromanica\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/ieslaromanica\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ieslaromanica\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ieslaromanica\/wp-json\/wp\/v2\/comments?post=19381"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/ieslaromanica\/wp-json\/wp\/v2\/posts\/19381\/revisions"}],"predecessor-version":[{"id":19390,"href":"https:\/\/agora.xtec.cat\/ieslaromanica\/wp-json\/wp\/v2\/posts\/19381\/revisions\/19390"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ieslaromanica\/wp-json\/wp\/v2\/media\/19387"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/ieslaromanica\/wp-json\/wp\/v2\/media?parent=19381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ieslaromanica\/wp-json\/wp\/v2\/categories?post=19381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ieslaromanica\/wp-json\/wp\/v2\/tags?post=19381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}