{"id":27306,"date":"2020-12-26T18:11:59","date_gmt":"2020-12-26T23:11:59","guid":{"rendered":"http:\/\/mathkind.meetgroundswell.com\/?post_type=global-math-stories&#038;p=27306"},"modified":"2026-04-10T20:16:28","modified_gmt":"2026-04-11T00:16:28","slug":"cameroon","status":"publish","type":"global-math-stories","link":"https:\/\/mathkind.org\/es\/global-math-stories\/cameroon\/","title":{"rendered":"Camer\u00fan"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.16&#8243; custom_margin_tablet=&#8221;&#8221; custom_margin_phone=&#8221;&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;6px||30px||false|false&#8221; custom_padding_tablet=&#8221;||15px||false|false&#8221; custom_padding_phone=&#8221;||10px||false|false&#8221; da_disable_devices=&#8221;off|off|off&#8221; global_colors_info=&#8221;{}&#8221; da_is_popup=&#8221;off&#8221; da_exit_intent=&#8221;off&#8221; da_has_close=&#8221;on&#8221; da_alt_close=&#8221;off&#8221; da_dark_close=&#8221;off&#8221; da_not_modal=&#8221;on&#8221; da_is_singular=&#8221;off&#8221; da_with_loader=&#8221;off&#8221; da_has_shadow=&#8221;on&#8221;][et_pb_row _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16&#8243; header_3_text_color=&#8221;#0a1766&#8243; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3 style=\"text-align: center;\">CAMEROON<\/h3>\n<div id=\"gtx-trans\" style=\"position: absolute; left: -72px; top: -1px;\">\n<div class=\"gtx-trans-icon\">\u00a0<\/div>\n<\/div>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.16&#8243; header_text_color=&#8221;#0a1766&#8243; header_font_size=&#8221;42px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1 style=\"text-align: center;\">Jaglavak: Battle of the Bugs<\/h1>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.16&#8243; text_text_color=&#8221;#279b45&#8243; text_line_height=&#8221;1em&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"text-align: center;\">By Chadd McGlone<\/p>\n<p style=\"text-align: center;\">Chapel Hill, NC, United States<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; custom_margin_tablet=&#8221;&#8221; custom_margin_phone=&#8221;||||false|false&#8221; custom_margin_last_edited=&#8221;on|phone&#8221; custom_padding=&#8221;0px||||false|false&#8221; da_disable_devices=&#8221;off|off|off&#8221; global_colors_info=&#8221;{}&#8221; da_is_popup=&#8221;off&#8221; da_exit_intent=&#8221;off&#8221; da_has_close=&#8221;on&#8221; da_alt_close=&#8221;off&#8221; da_dark_close=&#8221;off&#8221; da_not_modal=&#8221;on&#8221; da_is_singular=&#8221;off&#8221; da_with_loader=&#8221;off&#8221; da_has_shadow=&#8221;on&#8221;][et_pb_row column_structure=&#8221;3_5,2_5&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.0&#8243; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>Among the inhospitable mountains of northern<strong> Cameroon<\/strong> live the Mofu people. Calling themselves &#8220;People of the Rock,&#8221; their primary pursuit is harmony with nature. You may have friends who like to take walks on the weekends or plant petunias by their patios, but have you ever known someone who befriended a beetle? The Mofu have a unique way of interacting with their environment \u2014 they connect with insects.<\/p>\n<p>That\u2019s right. Not only do the Mofu eat their six-legged neighbors as a source of protein, but they also keep insects as pets. Human supremacy isn\u2019t always the rule, however, because during droughts, one species of insect, namely termites, turns on their Mofu cohabitants.<\/p>\n<p><strong><span style=\"color: #0a1766;\">Home Invasion<\/span><\/strong><\/p>\n<p>Much like elsewhere in the world, termites attack the structures Mofu build to shelter their families. Consistent with their cultural values, Mofu homes reflect their connection to nature, as they are constructed entirely from locally sourced, sustainable materials. The Mofu form the walls of their houses from clay packed onto lattice frames of entwined sticks. Roofs consist of dried grass woven in a pattern that repels rain.<\/p>\n<p>Unfortunately for the Mofu, termites can\u2019t resist those delicious thatched roofs. Wandering over from a nest in the area, a termite will burrow through the clay sides of the house in pursuit of a juicy snack. In short order, the thatched roof has become a termite banquet.<\/p>\n<p><strong><span style=\"color: #0a1766;\">Time for Jaglavak<\/span><\/strong><\/p>\n<p>Once a family is certain that termites have invaded their home, their only solution is to call for <em>jaglavak<\/em>. Who or what is a jaglavak? To the Mofu, jaglavak is the warrior prince who saves their homes. To us, it is a collection of army ants.<\/p>\n<p><strong><span style=\"color: #0a1766;\">African Army Ants<\/span><\/strong><\/p>\n<p>African army ants are the largest ants on the planet and live in colonies of up to 20 million individuals. Because of their enormous populations, they are constantly on the move looking for food sources. Those tiny beetles, spiders, worms and other invertebrates that emerge when you stir up a pile of dead leaves? They are army ant prey.<\/p>\n<p>[\/et_pb_text][et_pb_image src=&#8221;https:\/\/mathkind.org\/wp-content\/uploads\/2024\/07\/Cameroon-GMS-army-ants_Axel-Rouvin_Flickr.png&#8221; title_text=&#8221;Cameroon GMS army ants_Axel Rouvin_Flickr&#8221; _builder_version=&#8221;4.27.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.27.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;9px&#8221; text_line_height=&#8221;1.2em&#8221; custom_margin=&#8221;-40px||||false|false&#8221; custom_padding=&#8221;||||false|false&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><em><span style=\"font-size: 14px;\">Photo credit: Axel Rouvin via Flickr<\/span><\/em><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.27.0&#8243; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>A trail of foraging army ants can be as wide as 20 meters and as long as 100 meters. They are known as the great cleaners of the forest, because they consume every bit of prey in their path. Estimates of how many meals they eat in one day range from 30,000 to 100,000.<\/p>\n<p><strong><span style=\"color: #0a1766;\">To the Rescue<\/span><\/strong><\/p>\n<p>You can see why a family besieged by termites might turn to these fierce fighters for help. The first step is to ask the village chief to fetch jaglavak. The chief searches out an army ant colony, collects several hundred in a clay pot, blesses them and releases them at the infested house.<\/p>\n<p><strong><span style=\"color: #0a1766;\">Battling Bugs<\/span><\/strong><\/p>\n<p>A savage battle ensues between the ants and the termites. Despite the superior size of the termites, the ants\u2019 aggressive swarming overpowers them. Jaglavak have been known to eat frogs, birds and snakes, so termites are easily defeated.<\/p>\n<p>Within two or three weeks, the army ants have completely consumed the offending termites. They then head back out into the forest to find their queen and wage war within the leaf litter, leaving behind a happy homeowner.<\/p>\n<p><em>Have a suggestion for this story? We\u2019d love for you to\u00a0<a href=\"https:\/\/mathkind.org\/global-math-stories-suggestion\/\" target=\"_blank\" rel=\"noopener\">submit it<\/a>!<\/em><\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/mathkind.org\/wp-content\/uploads\/2018\/03\/armyanteating.jpg&#8221; alt=&#8221;inflating the balloon&#8221; title_text=&#8221;armyanteating&#8221; align=&#8221;center&#8221; force_fullwidth=&#8221;on&#8221; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_image src=&#8221;https:\/\/mathkind.org\/wp-content\/uploads\/2018\/03\/termite-mound.jpg&#8221; alt=&#8221;hot air balloon in the sky&#8221; title_text=&#8221;termite mound&#8221; align=&#8221;center&#8221; force_fullwidth=&#8221;on&#8221; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_accordion _builder_version=&#8221;4.27.4&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_accordion_item title=&#8221;Blank&#8221; open=&#8221;on&#8221; _builder_version=&#8221;4.16&#8243; custom_css_main_element=&#8221;display: none; &#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>Blank<\/p>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;Slideshows&#8221; open_toggle_text_color=&#8221;#0a1766&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221; toggle_text_color=&#8221;#0a1766&#8243; toggle_font_size=&#8221;18px&#8221; open=&#8221;off&#8221;]<\/p>\n<p>Are you a teacher who&#8217;s interested in telling this story to your students? Here are two slideshows\u00a0to get you started!<\/p>\n<ul>\n<li><a href=\"https:\/\/docs.google.com\/presentation\/d\/1914UyZe1xVT7vDraLd86FLIOUcADZizkSDVi0_H5kiw\/edit?usp=sharing\" target=\"_blank\" rel=\"noopener\">Overview slides<\/a><\/li>\n<li><a href=\"https:\/\/docs.google.com\/presentation\/d\/1XRfT-nCX8COeTlKtUQR1Sy_3RTxbdpA3ClUehNBB8ng\/edit?usp=sharing\" target=\"_blank\" rel=\"noopener\">Detailed slides<\/a><\/li>\n<\/ul>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;Math Resources&#8221; open_toggle_text_color=&#8221;#0a1766&#8243; _builder_version=&#8221;4.27.4&#8243; global_colors_info=&#8221;{}&#8221; toggle_text_color=&#8221;#0a1766&#8243; toggle_font_size=&#8221;18px&#8221; open=&#8221;off&#8221;]<\/p>\n<p>Learning Activities:<\/p>\n<ul>\n<li><a href=\"https:\/\/docs.google.com\/document\/d\/1oh9rkNfewgIlCEJ_lbtHyTtvbHcEhwWuY5kvHpjRVTM\/edit?usp=sharing\" target=\"_blank\" rel=\"noopener\">Exponential Growth<\/a> (Middle School)<\/li>\n<li><a href=\"https:\/\/docs.google.com\/document\/d\/1Y2OkUttpbGASuORV8s0uO4Oz-trKcGm5BvqJQMbXsh4\/edit?usp=sharing\" target=\"_blank\" rel=\"noopener\">Working with Large Numbers<\/a> (Middle School)<\/li>\n<li><a href=\"https:\/\/docs.google.com\/document\/d\/103M7rUucw2ZWkERRP4G8wFwc-hqPnj0_bNqKw-NoyZE\/edit?usp=sharing\" target=\"_blank\" rel=\"noopener\">Exponential Growth<\/a> (Grades 8\u201310)<\/li>\n<\/ul>\n<p>Sample Problems:<\/p>\n<ol>\n<li>In Cameroon, there are about 15,000 army ant colonies. Use scientific notation to write how many individual ants can be found in the entire country?<\/li>\n<li>A single ant has an area of five square millimeters. How much area does an entire colony trail take up?<\/li>\n<li>It takes 15 ants to kill one termite. If a home contains a termite colony with 15,000 termites, how many ants does the chief need to release to get rid of the infestation?<\/li>\n<li>Termite colony populations grow exponentially. The chief will get jaglavak if someone sees 150 termites. If a homeowner counts four termites one day, 11 two days later, and 25 four days later, when does the chief need to get jaglavak? Change the numbers to explore this pattern more deeply.<\/li>\n<li>If a chief captures 100,000 ants, how many ants are left in a colony of 20 million? What percentage of the colony is the chief taking?<\/li>\n<li>If the weight of a worker ant is between 1.5 and 9.6 milligrams, what is the lowest possible weight of the 100,000 ants the chief captures? What would be the heaviest they could weigh?<\/li>\n<li>A colony of 200,000 ants travels at a rate of 20 meters per hour. Convert this rate to miles per hour.<\/li>\n<\/ol>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;Social Justice Question&#8221; open_toggle_text_color=&#8221;#0a1766&#8243; _builder_version=&#8221;4.27.4&#8243; global_colors_info=&#8221;{}&#8221; toggle_text_color=&#8221;#0a1766&#8243; toggle_font_size=&#8221;18px&#8221; open=&#8221;off&#8221;]<\/p>\n<p>What do you think about the way Western countries such as the United States use chemicals to kill termites? What are the benefits and disadvantages, in your opinion? Should this pest-control technology be used to help the Mofu protect their houses?<\/p>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;Extension Question&#8221; open_toggle_text_color=&#8221;#0a1766&#8243; _builder_version=&#8221;4.27.0&#8243; global_colors_info=&#8221;{}&#8221; toggle_text_color=&#8221;#0a1766&#8243; toggle_font_size=&#8221;18px&#8221; open=&#8221;off&#8221;]<\/p>\n<p>To control the local mosquito population, an agency in the Florida Keys has released genetically modified mosquitoes that prevent female offspring from maturing. Read <a href=\"https:\/\/www.reuters.com\/business\/healthcare-pharmaceuticals\/florida-releases-genetically-modified-mosquitoes-hopes-reduce-spread-disease-2021-05-10\/\" target=\"_blank\" rel=\"noopener\">this news account<\/a> and then compare the Florida program with the Mofu\u2019s termite control strategy. What are the strengths and weaknesses of each?<\/p>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;Explore Further&#8221; open_toggle_text_color=&#8221;#0a1766&#8243; _builder_version=&#8221;4.27.0&#8243; global_colors_info=&#8221;{}&#8221; toggle_text_color=&#8221;#0a1766&#8243; toggle_font_size=&#8221;18px&#8221; open=&#8221;off&#8221;]<\/p>\n<ol>\n<li><a href=\"http:\/\/www.pbs.org\/wgbh\/nova\/nature\/jaglavak-prince-of-insects.html\" target=\"_blank\" rel=\"noopener noreferrer\">PBS story<\/a> on the Mofu and jaglavak<\/li>\n<li><a href=\"https:\/\/www.youtube.com\/watch?v=s2XOhcXz_zs&amp;t=663s\" target=\"_blank\" rel=\"noopener noreferrer\">Part 1<\/a> of a documentary on jaglavak<\/li>\n<li>Army ant <a href=\"https:\/\/animalsake.com\/fascinating-facts-about-army-ants\" target=\"_blank\" rel=\"noopener noreferrer\">fun facts<\/a><\/li>\n<li>Video of an <a href=\"https:\/\/www.facebook.com\/190081785003038\/posts\/593760801301799\/?vh=e&amp;extid=sIeF41fmkGKvtW9Q\" target=\"_blank\" rel=\"noopener noreferrer\">ant-termite \u201ctruce\u201d<\/a><\/li>\n<li>Podcast about an <a href=\"https:\/\/gimletmedia.com\/shows\/every-little-thing\/llhv3db\" target=\"_blank\" rel=\"noopener\">army ant problem<\/a> in Kenya<\/li>\n<li>Research on <a href=\"https:\/\/phys.org\/news\/2021-01-mathematical-complex-architecture-termite-mounds.html\" target=\"_blank\" rel=\"noopener\">the math of termite mounds<\/a><\/li>\n<\/ol>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;Share Your Story&#8221; open_toggle_text_color=&#8221;#0a1766&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221; toggle_text_color=&#8221;#0a1766&#8243; toggle_font_size=&#8221;18px&#8221; open=&#8221;off&#8221;]<\/p>\n<p>Write your own Global Math Story and\u00a0<a href=\"https:\/\/mathkind.org\/global-math-stories-submission\/\" target=\"_blank\" rel=\"noopener\">send it to us<\/a>!<\/p>\n<p>[\/et_pb_accordion_item][\/et_pb_accordion][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"story_category":[149,125,115,112,116],"class_list":["post-27306","global-math-stories","type-global-math-stories","status-publish","hentry","story_category-cameroon","story_category-country","story_category-learning-activities","story_category-slideshows","story_category-social-justice-questions"],"acf":[],"_links":{"self":[{"href":"https:\/\/mathkind.org\/es\/wp-json\/wp\/v2\/global-math-stories\/27306","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mathkind.org\/es\/wp-json\/wp\/v2\/global-math-stories"}],"about":[{"href":"https:\/\/mathkind.org\/es\/wp-json\/wp\/v2\/types\/global-math-stories"}],"wp:attachment":[{"href":"https:\/\/mathkind.org\/es\/wp-json\/wp\/v2\/media?parent=27306"}],"wp:term":[{"taxonomy":"story_category","embeddable":true,"href":"https:\/\/mathkind.org\/es\/wp-json\/wp\/v2\/story_category?post=27306"}],"curies":[{"name":"gracias","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}