{"id":2095,"date":"2025-10-03T08:52:32","date_gmt":"2025-10-03T08:52:32","guid":{"rendered":"https:\/\/www.matsvinnpaschemat.se\/larare\/?p=2095"},"modified":"2026-02-17T10:40:38","modified_gmt":"2026-02-17T10:40:38","slug":"matsvinn-och-matte-pa-restaurangen","status":"publish","type":"post","link":"https:\/\/matsvinnpaschemat.se\/larare\/matsvinn-och-matte-pa-restaurangen\/","title":{"rendered":"Matsvinn och matte p\u00e5 restaurangen"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66%\"><div class=\"wp-block-post-excerpt has-medium-font-size\"><p class=\"wp-block-post-excerpt__excerpt\">Eleverna f\u00e5r i denna lektion r\u00e4kna p\u00e5 matsvinnet i en fiktiv lunchrestaurang, och l\u00e4ra sig mer om matsvinnets ekonomiska effekter. <\/p><\/div>\n\n<figure class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"901\" height=\"550\" src=\"https:\/\/matsvinnpaschemat.se\/larare\/wp-content\/uploads\/sites\/7\/2025\/10\/Lektionskort_G_Matsvinn-och-matte-pa-restaurangen.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" style=\"border-radius:10px;object-fit:cover;\" srcset=\"https:\/\/matsvinnpaschemat.se\/larare\/wp-content\/uploads\/sites\/7\/2025\/10\/Lektionskort_G_Matsvinn-och-matte-pa-restaurangen.jpg 901w, https:\/\/matsvinnpaschemat.se\/larare\/wp-content\/uploads\/sites\/7\/2025\/10\/Lektionskort_G_Matsvinn-och-matte-pa-restaurangen-300x183.jpg 300w, https:\/\/matsvinnpaschemat.se\/larare\/wp-content\/uploads\/sites\/7\/2025\/10\/Lektionskort_G_Matsvinn-och-matte-pa-restaurangen-768x469.jpg 768w\" sizes=\"auto, (max-width: 901px) 100vw, 901px\" \/><\/figure>\n\n\n<div class=\"wp-block-group has-link-color wp-elements-7f9e6f5d3078585895d57e6131a227c6 is-layout-flow wp-container-core-group-is-layout-8 wp-block-group-is-layout-flow\">\n<details class=\"wp-block-details has-accent-2-background-color has-background has-medium-font-size is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Syfte och koppling till l\u00e4roplanen<\/strong><\/summary>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-1 wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading\">Syfte och m\u00e5l<\/h2>\n\n\n\n<p>Eleverna f\u00e5r genom olika r\u00e4kneuppgifter l\u00e4ra sig om matsvinn och vad detta kan kosta. \u00d6kad medvetenhet om detta kan leda till \u00f6kad vilja att minska matsvinnet, b\u00e5de hemma och i andra delar av livsmedelskedjan.<\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Koppling till l\u00e4roplanen<\/h2>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-2 wp-block-group-is-layout-flex\">\n<h4 class=\"wp-block-heading\">Matematik 1a<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em>Matematiska begrepp som \u00e4r relevanta f\u00f6r arbetslivet, till exempel proportionalitet, skala, likformighet, vinklar, Pythagoras sats, procent och andelar, indexm\u00e5tt, vinst-marginal, j\u00e4mvikt, felmarginaler, symmetrier, vektorer, trigonometriska funktioner och barns l\u00e4rande inom matematik.<\/em><\/li>\n\n\n\n<li><em>Ber\u00e4kningsmetoder som \u00e4r relevanta f\u00f6r arbetslivet, till exempel uppskattningar, ber\u00e4kningar p\u00e5 st\u00f6rningar eller m\u00e4tfel, spill- och svinnber\u00e4kningar, \u00f6verslagsr\u00e4kning, avrundning, anv\u00e4ndning av kalkylprogram och metoder f\u00f6r kontrollber\u00e4kning.<\/em><\/li>\n\n\n\n<li><em>Hantering av formler som \u00e4r relevanta f\u00f6r arbetslivet.<\/em><\/li>\n\n\n\n<li><em>M\u00e4tning och hantering av storheter och enheter som \u00e4r relevanta f\u00f6r arbetslivet, till exempel enhetsbyten, m\u00e4tning av vinklar, avrundningsprinciper, tidsuppskattningar, ber\u00e4kning av f\u00f6rbrukningsmaterial, kostnadsber\u00e4kningar, s\u00e4kerhetsmarginaler, hantering av m\u00e4tverktyg och hantering av m\u00e4tos\u00e4kerheter.<\/em><\/li>\n\n\n\n<li><em>Begreppet f\u00f6r\u00e4ndringsfaktor och ber\u00e4kning av f\u00f6r\u00e4ndringar i flera steg.<\/em><\/li>\n\n\n\n<li><em>Probleml\u00f6sning med s\u00e4rskild utg\u00e5ngspunkt i arbetslivet samt privatekonomi och samh\u00e4llsliv, d\u00e4ribland fr\u00e5gest\u00e4llningar som ber\u00f6r h\u00e5llbar utveckling och hur matematik kan anv\u00e4ndas f\u00f6r kritisk granskning av fakta och p\u00e5st\u00e5enden.<\/em><\/li>\n<\/ul>\n<\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-details has-accent-2-background-color has-background has-medium-font-size is-layout-flow wp-block-details-is-layout-flow\" open><summary><strong>L\u00e4rarhandledning<\/strong><\/summary>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-3 wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading\">F\u00f6rkunskaper<\/h2>\n\n\n\n<p>Eleverna b\u00f6r kunna procentr\u00e4kning och ha grundl\u00e4ggande k\u00e4nnedom i enhetsomvandling. Eleverna b\u00f6r ocks\u00e5 ha kunskaper om hur en ekvation st\u00e4lls upp samt hur en graf ritas utifr\u00e5n v\u00e4rden i en tabell.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4 wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading\">Tids\u00e5tg\u00e5ng och arbetss\u00e4tt<\/h2>\n\n\n\n<p>1-2 lektioner. Eleverna arbetar enskilt eller i par. Genomg\u00e5ng av svar i helklass.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-5 wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading\">Material<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Arbetsblad, digitalt eller utskrivet, ett ex per elev eller per elevpar.<\/li>\n\n\n\n<li>Minir\u00e4knare<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-6 wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading\">Genomf\u00f6rande<\/h2>\n\n\n\n<p>Inled lektionen med att kort ber\u00e4tta om uppgiften f\u00f6r eleverna: de ska, enskilt eller i par, r\u00e4kna p\u00e5 matsvinnet som uppst\u00e5r i en fiktiv restaurang d\u00e4r de jobbar. F\u00f6r en restaurang \u00e4r varje kg matsvinn pengar som sl\u00e4ngs i soporna. Detta \u00e4r extra relevant f\u00f6r de elever som l\u00e4ser restauranglinjen.<br><br>Det kan vara bra att kort repetera med eleverna hur man st\u00e4ller upp en ekvation med ok\u00e4nda variabler. I uppgift 2 ska de r\u00e4kna p\u00e5 vinstmarginal och i uppgift 4 ska de r\u00e4kna ut f\u00f6r\u00e4ndringsfaktorn. \u00c4ven h\u00e4r kan det vara bra att i helklass ha g\u00e5tt igenom ett exempel<br>innan. <\/p>\n\n\n\n<p>L\u00e5t eleverna arbeta med arbetsbladet. I en del av uppgifterna kan de skriva sina svar direkt i arbetsbladet, i andra fall kan de skriva i ett eget r\u00e4kneh\u00e4fte.<\/p>\n\n\n\n<p>Ta g\u00e4rna en paus och g\u00e5 igenom uppgifterna under lektionens g\u00e5ng, allt eftersom eleverna blir klara med uppgifterna.<br><br>Avsluta lektionen genom att l\u00e5ta eleverna reflektera \u00f6ver vad de l\u00e4rt sig. Diskutera utan att skuldbel\u00e4gga!<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Var det n\u00e5got som de blev f\u00f6rv\u00e5nade \u00f6ver?<\/li>\n\n\n\n<li>Brukar de sj\u00e4lva l\u00e4mna mat om de g\u00e5r p\u00e5 restaurang?<br>&#8211; Om ja, vad \u00e4r de som de oftast inte orkar \u00e4ta upp?<br>&#8211; Ber de om doggybag om de f\u00e5r mat \u00f6ver? Varf\u00f6r\/Varf\u00f6r inte?<\/li>\n\n\n\n<li>Vad skulle de sj\u00e4lva tycka om att \u00e4ta p\u00e5 en restaurang som erbjuder olika portions-<br>storlekar?<\/li>\n<\/ul>\n<\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-details has-accent-2-background-color has-background has-medium-font-size is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>K\u00e4llor<\/strong><\/summary>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-7 wp-block-group-is-layout-flex\">\n<p><a href=\"http:\/\/www.kunskapskokboken.se\/3.405\/varufakta\/vitlok\/\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/www.kunskapskokboken.se\/3.405\/varufakta\/vitlok\/<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.kunskapskokboken.se\/3.18841\/varufakta\/citronjuice-limejuice\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/www.kunskapskokboken.se\/3.18841\/varufakta\/citronjuice-limejuice<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/outofhome.se\/p\/?search=kik%C3%A4rtor\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/outofhome.se\/p\/?search=kik%C3%A4rtor <\/a><br>(F\u00f6r samtliga livsmedelspriser utom nedan n\u00e4mnda)<\/p>\n\n\n\n<p><a href=\"https:\/\/www.mathem.se\/se\/products\/3390-scan-lammytterfile-ca-460g-scan\/?utm_cam-paign=bb-mathem-shopping&amp;utm_content=nonbrand&amp;gad_source=1&amp;gclid=CjwKCAjw_4S3BhAAEiwA_64YhrfztI2lwqeg3pOyhYwSyXtESh9hGeJbeNXtzOKl9yUhj_xxOb-mIfxoCfMcQAvD_BwE\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.mathem.se\/se\/products\/3390-scan-lammytterfile-ca-460g-scan\/?utm_cam-paign=bb-mathem-shopping&amp;utm_content=nonbrand&amp;gad_source=1&amp;gclid=CjwKCAjw_4S3BhAAEiwA_64YhrfztI2lwqeg3pOyhYwSyXtESh9hGeJbeNXtzOKl9yUhj_xxOb-mIfxoCfMcQAvD_BwE<\/a> <br>(Ord.jmf.pris \u2013 12 % moms)<\/p>\n\n\n\n<p><a href=\"https:\/\/www.citygross.se\/matvaror\/frukt-och-gront\/gronsaker\/gr%C3%B6n-zucchini-klass-1-p100268130_ST\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.citygross.se\/matvaror\/frukt-och-gront\/gronsaker\/gr%C3%B6n-zucchini-klass-1-p100268130_ST<\/a> <br>(Ord.jmf.pris \u2013 12 % moms)<\/p>\n\n\n\n<p><a href=\"https:\/\/www.citygross.se\/sok?Q=mor%C3%B6tter&amp;page=1&amp;store\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.citygross.se\/sok?Q=mor%C3%B6tter&amp;page=1&amp;store<\/a> <br>(Ord.jmf.pris \u2013 12 % moms)<\/p>\n\n\n\n<p><a href=\"https:\/\/www.citygross.se\/sok?Q=potatis&amp;page=1&amp;store\">https:\/\/www.citygross.se\/sok?Q=potatis&amp;page=1&amp;store<\/a> <br>(Ord.jmf.pris \u2013 12 % moms)<\/p>\n\n\n\n<p><a href=\"https:\/\/www.citygross.se\/sok?Q=mynta&amp;page=1&amp;store\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.citygross.se\/sok?Q=mynta&amp;page=1&amp;store<\/a> <br>(Ord.jmf.pris \u2013 12 % moms)<\/p>\n\n\n\n<p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0924224424003017\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0924224424003017<\/a><\/p>\n<\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-details has-accent-2-background-color has-background has-medium-font-size is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>F\u00f6rslag p\u00e5 uppf\u00f6ljande lektion<\/strong><\/summary>\n<p>Om ni inte tidigare gjort lektionen kan <em>Cirkelmattegympa <\/em>vara ett bra s\u00e4tt att f\u00f6lja upp denna lektion. I Cirkelmattegympa f\u00e5r eleverna l\u00e4ra sig mer om och r\u00e4kna p\u00e5 matr\u00e4tters olika h\u00e5llbarhetsparametrar.<\/p>\n<\/details>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33%\">\n<div id=\"laddaner\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow wp-container-4 is-position-sticky\" style=\"border-style:none;border-width:0px;border-radius:10px;margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--40);padding-right:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">F\u00f6rhandsgranska<\/h2>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link has-accent-2-background-color has-background wp-element-button\" href=\"https:\/\/matsvinnpaschemat.se\/larare\/wp-content\/uploads\/sites\/7\/2025\/10\/Matsvinn-och-matte-pa-restaurangen-Lararmaterial.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">L\u00e4rarmaterial<\/a><\/div>\n\n\n\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-outline is-style-outline--2\"><a class=\"wp-block-button__link has-accent-2-background-color has-background wp-element-button\" href=\"https:\/\/matsvinnpaschemat.se\/larare\/wp-content\/uploads\/sites\/7\/2025\/10\/Matsvinn-och-matte-pa-restaurangen-Uppgifter-med-facit.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Arbetsblad<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Ladda ner<\/h2>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 download\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/matsvinnpaschemat.se\/larare\/wp-content\/uploads\/sites\/7\/2025\/10\/Matsvinn-och-matte-pa-restaurangen-Lararmaterial.pdf\">L\u00e4rarmaterial<\/a><\/div>\n\n\n\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 download\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/matsvinnpaschemat.se\/larare\/wp-content\/uploads\/sites\/7\/2025\/10\/Matsvinn-och-matte-pa-restaurangen-Uppgifter-med-facit.pdf\">Arbetsblad<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-outline is-style-outline--3\"><a class=\"wp-block-button__link has-accent-2-background-color has-background wp-element-button\" href=\"\/matsvinn-och-matte-pa-restaurangen\" target=\"_blank\" rel=\"noreferrer noopener\">Till elevvy<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Eleverna f\u00e5r i denna lektion r\u00e4kna p\u00e5 matsvinnet i en fiktiv lunchrestaurang, och l\u00e4ra sig mer om matsvinnets ekonomiska effekter.<\/p>\n","protected":false},"author":4,"featured_media":2105,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[42],"tags":[43],"class_list":["post-2095","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gymnasiet","tag-matematik"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/matsvinnpaschemat.se\/larare\/wp-json\/wp\/v2\/posts\/2095","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/matsvinnpaschemat.se\/larare\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/matsvinnpaschemat.se\/larare\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/matsvinnpaschemat.se\/larare\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/matsvinnpaschemat.se\/larare\/wp-json\/wp\/v2\/comments?post=2095"}],"version-history":[{"count":19,"href":"https:\/\/matsvinnpaschemat.se\/larare\/wp-json\/wp\/v2\/posts\/2095\/revisions"}],"predecessor-version":[{"id":3273,"href":"https:\/\/matsvinnpaschemat.se\/larare\/wp-json\/wp\/v2\/posts\/2095\/revisions\/3273"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/matsvinnpaschemat.se\/larare\/wp-json\/wp\/v2\/media\/2105"}],"wp:attachment":[{"href":"https:\/\/matsvinnpaschemat.se\/larare\/wp-json\/wp\/v2\/media?parent=2095"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/matsvinnpaschemat.se\/larare\/wp-json\/wp\/v2\/categories?post=2095"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/matsvinnpaschemat.se\/larare\/wp-json\/wp\/v2\/tags?post=2095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}