{"id":18361,"date":"2025-07-22T19:00:19","date_gmt":"2025-07-22T17:00:19","guid":{"rendered":"https:\/\/scm.iec.cat\/?p=18361"},"modified":"2026-08-21T01:21:42","modified_gmt":"2026-08-20T23:21:42","slug":"novetat-torna-la-contrarellotge-matematica","status":"publish","type":"post","link":"https:\/\/scm.iec.cat\/eng\/novetat-torna-la-contrarellotge-matematica\/","title":{"rendered":"News: The Mathematical Countdown is back!"},"content":{"rendered":"<h3 data-start=\"189\" data-end=\"271\">The Mathematical Countdown Returns: New Editions for the 2025-2026 School Year!<\/h3>\n<p data-start=\"273\" data-end=\"529\">After a few years of pause, the <strong data-start=\"375\" data-end=\"407\">Mathematical time trial<\/strong>, is resuming, an individual online test aimed at students of various educational levels, up to high school, which tests their speed and ingenuity. It was born on February 12, 2017, created and designed by V\u00edctor Lopez.<\/p>\n<p data-start=\"273\" data-end=\"529\">The <strong data-start=\"304\" data-end=\"350\">Catalan Society of Mathematics<\/strong> has decided to support it in 2025, and promote it to give more opportunities to boys and girls interested in problem-solving.<\/p>\n<p data-start=\"273\" data-end=\"529\">The goal of the test is to solve, within a limited time, a series of mathematical problems of increasing difficulty. The importance lies not in performing complicated calculations or having advanced knowledge, but in <strong data-start=\"776\" data-end=\"848\">thinking quickly, applying logic, and having fun solving challenges.<\/strong>.<\/p>\n<p data-start=\"273\" data-end=\"529\">It is designed for boys and girls from the last years of primary school to high school, but it is also open to teachers and anyone who is excited to join!<\/p>\n<p data-start=\"627\" data-end=\"669\">The tests will be accessible individually and free of charge, and will take place online on<strong> Sundays<\/strong>\u00a0at <strong>19:00<\/strong>, in two series, in the months of October and February.<\/p>\n<p data-start=\"671\" data-end=\"693\"><strong data-start=\"671\" data-end=\"693\">\ud83d\udcc5 October 2025<\/strong><\/p>\n<ul data-start=\"694\" data-end=\"815\">\n<li data-start=\"694\" data-end=\"725\">\n<p data-start=\"696\" data-end=\"725\">October 5: up to 6th grade of primary school<\/p>\n<\/li>\n<li data-start=\"726\" data-end=\"752\">\n<p data-start=\"728\" data-end=\"752\">October 12: up to 2nd year of ESO<\/p>\n<\/li>\n<li data-start=\"753\" data-end=\"779\">\n<p data-start=\"755\" data-end=\"779\">October 19: up to 4th year of ESO<\/p>\n<\/li>\n<li data-start=\"780\" data-end=\"815\">\n<p data-start=\"782\" data-end=\"815\">October 26: up to 2nd year of high school<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"817\" data-end=\"838\"><strong data-start=\"817\" data-end=\"838\">\ud83d\udcc5 February 2026<\/strong><\/p>\n<ul data-start=\"839\" data-end=\"959\">\n<li data-start=\"839\" data-end=\"870\">\n<p data-start=\"841\" data-end=\"870\">February 1: up to 6th grade of primary school<\/p>\n<\/li>\n<li data-start=\"871\" data-end=\"896\">\n<p data-start=\"873\" data-end=\"896\">February 8: up to 2nd year of ESO<\/p>\n<\/li>\n<li data-start=\"897\" data-end=\"923\">\n<p data-start=\"899\" data-end=\"923\">February 15: up to 4th year of ESO<\/p>\n<\/li>\n<li data-start=\"924\" data-end=\"959\">\n<p data-start=\"926\" data-end=\"959\">February 22: up to 2nd year of high school<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1164\" data-end=\"1196\"><strong data-start=\"1167\" data-end=\"1196\">Operation<\/strong><\/p>\n<ul class=\"llista-separada\">\n<li>A countdown consists of\u00a0<b>15 problems<\/b>\u00a0in a test format with\u00a0<b>5 options<\/b>\u00a0each.<\/li>\n<li>The problems are solved in order, with a limited time for each problem, a total of 50 minutes.<\/li>\n<li>For each problem, participants are divided into <strong>tables<\/strong>\u00a0of<b> of 5<\/b>, according to the ranking order, which allow them to earn extra points.<\/li>\n<li>Each contest is aimed at participants of a specific school level, but students from previous levels can also participate. Users from higher levels (older students, teachers, and other interested individuals) can participate in the <b>open contest<\/b>, which has a parallel ranking.<\/li>\n<li>You can access previous countdowns and participate in them in a simulated way.<\/li>\n<\/ul>\n<p data-start=\"1164\" data-end=\"1196\">You can check the scoring rules and more details in the <a href=\"https:\/\/www.contrarellotge.cat\/instruccions\/\" rel=\"noopener\">instructions<\/a> on the original countdown website.<\/p>\n<p data-start=\"1164\" data-end=\"1196\"><strong data-start=\"1167\" data-end=\"1196\">Big news: prizes and in-person final<\/strong><\/p>\n<p data-start=\"1198\" data-end=\"1370\">We are working on an <strong data-start=\"1259\" data-end=\"1302\">in-person final in May or June 2026<\/strong>, where the students with the best scores in the online tests will be invited, and prizes will be awarded to the top finishers of each Countdown.<\/p>\n<p data-start=\"1198\" data-end=\"1370\">More information at: <a href=\"https:\/\/contrarellotge.scm.cat\/\" rel=\"noopener\">https:\/\/contrarellotge.scm.cat\/<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Torna la Contrarellotge Matem\u00e0tica: noves edicions per al curs 2025-2026! Despr\u00e9s d&#8217;uns anys de pausa, es repr\u00e8n la Contrarellotge matem\u00e0tica, una prova individual en l\u00ednia adre\u00e7ada a alumnes de diversos nivells educatius, fins a batxillerat, que posa a prova la seva rapidesa i l\u2019enginy. Va n\u00e9ixer el 12 de febrer de l&#8217;any 2017, creada i [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":18900,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[268,12],"tags":[98,219,220],"class_list":["post-18361","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-contrarellotge-matematica","category-noticies","tag-concursos","tag-contrarrellotge","tag-contrarrellotge-matematica"],"acf":[],"_links":{"self":[{"href":"https:\/\/scm.iec.cat\/eng\/wp-json\/wp\/v2\/posts\/18361","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scm.iec.cat\/eng\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scm.iec.cat\/eng\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scm.iec.cat\/eng\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/scm.iec.cat\/eng\/wp-json\/wp\/v2\/comments?post=18361"}],"version-history":[{"count":9,"href":"https:\/\/scm.iec.cat\/eng\/wp-json\/wp\/v2\/posts\/18361\/revisions"}],"predecessor-version":[{"id":18377,"href":"https:\/\/scm.iec.cat\/eng\/wp-json\/wp\/v2\/posts\/18361\/revisions\/18377"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/scm.iec.cat\/eng\/wp-json\/wp\/v2\/media\/18900"}],"wp:attachment":[{"href":"https:\/\/scm.iec.cat\/eng\/wp-json\/wp\/v2\/media?parent=18361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scm.iec.cat\/eng\/wp-json\/wp\/v2\/categories?post=18361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scm.iec.cat\/eng\/wp-json\/wp\/v2\/tags?post=18361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}