{"id":73500,"date":"2020-06-02T13:58:00","date_gmt":"2020-06-02T17:58:00","guid":{"rendered":"http:\/\/schools.wrdsb.ca\/athome\/?page_id=73500"},"modified":"2020-06-15T13:49:32","modified_gmt":"2020-06-15T17:49:32","slug":"mysterious-masses-revisited","status":"publish","type":"page","link":"https:\/\/schools.wrdsb.ca\/athome\/learn\/elementary-home\/elementary-2\/math\/math-grades-4-6\/problem-solving-prompts\/mysterious-masses-revisited\/","title":{"rendered":"Mysterious Masses (Revisited)"},"content":{"rendered":"<h5>Problem Solving Prompts<\/h5>\n<h2>Learning Goals:<\/h2>\n<ul>\n<li>Estimate and record the mass of objects<\/li>\n<li>Determine the missing numbers in equations<\/li>\n<li>Investigate variables as unknown quantities<\/li>\n<\/ul>\n<h2>The Challenge:<\/h2>\n<p>A veterinarian is trying to measure the weight of three pets: a dog, a cat, and a rabbit. The only problem is that she can\u2019t get them to sit still long enough to get a proper measurement!<\/p>\n<p>In the chaos, she was able to record the following measurements:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-73501 aligncenter\" src=\"http:\/\/schools.wrdsb.ca\/athome\/files\/2020\/06\/AnimalWeights.png\" alt=\"Four coloured masses labelled below different combinations of pet silhouettes. Green rectangle labelled 10 kg below a rabbit and cat silhouette, orange rectangle labelled 20 kg below a dog and rabbit silhouette, red rectangle labelled 24 kg below a dog and cat silhouette, and a blue rectangle labelled with a question mark below a dog, cat, and rabbit silhouette.\" width=\"800\" height=\"169\" srcset=\"https:\/\/schools.wrdsb.ca\/athome\/files\/2020\/06\/AnimalWeights.png 1600w, https:\/\/schools.wrdsb.ca\/athome\/files\/2020\/06\/AnimalWeights-300x63.png 300w, https:\/\/schools.wrdsb.ca\/athome\/files\/2020\/06\/AnimalWeights-768x162.png 768w, https:\/\/schools.wrdsb.ca\/athome\/files\/2020\/06\/AnimalWeights-1024x216.png 1024w, https:\/\/schools.wrdsb.ca\/athome\/files\/2020\/06\/AnimalWeights-165x35.png 165w, https:\/\/schools.wrdsb.ca\/athome\/files\/2020\/06\/AnimalWeights-1140x240.png 1140w, https:\/\/schools.wrdsb.ca\/athome\/files\/2020\/06\/AnimalWeights-945x199.png 945w, https:\/\/schools.wrdsb.ca\/athome\/files\/2020\/06\/AnimalWeights-750x158.png 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>Can she use this information to figure out the mass of all three pets combined?<\/p>\n<p>Could she also use this information to figure out the mass of each individual pet?<br \/>\nDo you think she would need this information before solving the total mass of all three? Why or why not?<\/p>\n<h3>Questions and Prompts to Support your Child:<\/h3>\n<ul>\n<li>Which piece of information did you use first to eventually figure out the total mass? Why did you start there?<\/li>\n<li>How do you know that those masses make sense for each type of pet?<\/li>\n<li>Could knowing any of these masses help you estimate the approximate mass of any other animals? A raccoon? A bird?<\/li>\n<\/ul>\n<h3>Extensions &amp; Adaptations:<\/h3>\n<ul>\n<li>If struggling with calculations, have a calculator handy!<\/li>\n<li>If unable to get started, try looking for connections between the sets of pets, and brainstorming some combinations that might make sense as masses (i.e., since a rabbit and a cat weight 10 kg together, combinations might be 4 kg rabbit + 6 kg cat, 3 kg rabbit + 7 kg cat, 2 kg rabbit + 8 kg cat, etc.)<\/li>\n<li>Check out <a href=\"https:\/\/mashupmath.com\/freemathpuzzles\" target=\"_blank\" rel=\"noopener\">Mashup Math<\/a> or <a href=\"https:\/\/solveme.edc.org\/mobiles\/\" target=\"_blank\" rel=\"noopener\">SolveMe Mobiles<\/a> for some more algebraic puzzling!<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>A veterinarian is trying to measure the weight of three pets: a dog, a cat, and a rabbit. The only problem is that she can\u2019t get them to sit still long enough to get a proper measurement!<\/p>\n","protected":false},"author":15985,"featured_media":0,"parent":72920,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-73500","page","type-page","status-publish","hentry","category-elementary"],"_links":{"self":[{"href":"https:\/\/schools.wrdsb.ca\/athome\/wp-json\/wp\/v2\/pages\/73500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/schools.wrdsb.ca\/athome\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/schools.wrdsb.ca\/athome\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/schools.wrdsb.ca\/athome\/wp-json\/wp\/v2\/users\/15985"}],"replies":[{"embeddable":true,"href":"https:\/\/schools.wrdsb.ca\/athome\/wp-json\/wp\/v2\/comments?post=73500"}],"version-history":[{"count":0,"href":"https:\/\/schools.wrdsb.ca\/athome\/wp-json\/wp\/v2\/pages\/73500\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/schools.wrdsb.ca\/athome\/wp-json\/wp\/v2\/pages\/72920"}],"wp:attachment":[{"href":"https:\/\/schools.wrdsb.ca\/athome\/wp-json\/wp\/v2\/media?parent=73500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/schools.wrdsb.ca\/athome\/wp-json\/wp\/v2\/categories?post=73500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/schools.wrdsb.ca\/athome\/wp-json\/wp\/v2\/tags?post=73500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}