{"id":26913,"date":"2024-06-28T13:37:23","date_gmt":"2024-06-28T13:37:23","guid":{"rendered":"https:\/\/www.erickson.international\/en\/?page_id=26913"},"modified":"2025-04-28T08:57:24","modified_gmt":"2025-04-28T08:57:24","slug":"monstrous-problems-at-hotel-de-tenebris","status":"publish","type":"page","link":"https:\/\/www.erickson.international\/en\/monstrous-problems-at-hotel-de-tenebris\/","title":{"rendered":"Monstrous problems at Hotel De Tenebris"},"content":{"rendered":"<div class=\"col-lg-12 col-md-12 col-sm-12 listalibri landingpage\">\n<!-- Bollino --><\/p>\n<div class=\"col-lg-12\"><img src=\"http:\/\/www.erickson.international\/wp-content\/uploads\/2016\/05\/The_Series_BOLLO.png\" alt=\"\"><\/div>\n<p><!-- Bollino END --><br \/>\n<!-- Titolo --><\/p>\n<div class=\"col-lg-12\">\n<h1 class=\"maggio23\">Monstrous problems at Hotel De Tenebris<\/h1>\n<p class=\"maggio23\"><em>Valeria Razzini<\/em><\/p>\n<\/div>\n<p><!-- Titolo END --><br \/>\n<!-- Highlights --><\/p>\n<div class=\"col-lg-12 linea-landingpage\">\n<hr>\n<p><!-- START ROW --><\/p>\n<div class=\"row\">\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\"><img src=\"https:\/\/www.erickson.international\/wp-content\/uploads\/2025\/04\/BASE_1000_Problemi_mostruosi_allHotel_De_Tenebris.jpg\" border=\"0\" class=\"img-responsive\"><\/div>\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\">\n<p class=\"maggio23\">&nbsp;<\/p>\n<p class=\"nome-cognome-autore\">THE  SERIES<\/p>\n<p class=\"maggio23\"><em>Monstrous Problems at Hotel De Tenebris <\/em>is a&nbsp;<strong>colorful and fun series of workbooks&nbsp;<\/strong>designed for&nbsp;<strong>primary school.&nbsp;<\/strong>Children must&nbsp;<strong>solve mathematical problems of consolidation and revision<\/strong>&nbsp;and discover the culprit of the crime along with the two protagonists Ombretta and Lupo.<\/p>\n<\/div>\n<\/div>\n<p><!-- END ROW --><\/p>\n<p><!-- START ROW --><\/p>\n<div class=\"row\">\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\">\n<p class=\"nome-cognome-autore\">What you will find in each volume:<\/p>\n<\/div>\n<div class=\"col-lg-6 col-md-12 col-sm-12 col-xs-12\">\n<img src=\"https:\/\/www.erickson.international\/wp-content\/uploads\/2024\/06\/BASE_1000_Problemi_mostruosi_allHotel_De_Tenebris_2.jpg\" border=\"0\" class=\"img-responsive\"><\/p>\n<p class=\"maggio23\" style=\"text-align: center; font-weight: bold\">The hotel map<\/p>\n<\/div>\n<div class=\"col-lg-6 col-md-12 col-sm-12 col-xs-12\">\n<img src=\"https:\/\/www.erickson.international\/wp-content\/uploads\/2024\/06\/BASE_1000_Problemi_mostruosi_allHotel_De_Tenebris_3.jpg\" border=\"0\" class=\"img-responsive\"><\/p>\n<p class=\"maggio23\" style=\"text-align: center; font-weight: bold\">The list of suspects<\/p>\n<\/div>\n<div class=\"col-lg-6 col-md-12 col-sm-12 col-xs-12\">\n<img src=\"https:\/\/www.erickson.international\/wp-content\/uploads\/2024\/06\/BASE_1000_Problemi_mostruosi_allHotel_De_Tenebris_4.jpg\" border=\"0\" class=\"img-responsive\"><\/p>\n<p class=\"maggio23\" style=\"text-align: center; font-weight: bold\">The sheet with the stickers<\/p>\n<\/div>\n<div class=\"col-lg-6 col-md-12 col-sm-12 col-xs-12\">\n<img src=\"https:\/\/www.erickson.international\/wp-content\/uploads\/2024\/06\/BASE_1000_Problemi_mostruosi_allHotel_De_Tenebris_5.jpg\" border=\"0\" class=\"img-responsive\"><\/p>\n<p class=\"maggio23\" style=\"text-align: center; font-weight: bold\">The grid in which to collect clues<\/p>\n<\/div>\n<\/div>\n<p><!-- END ROW --><br \/>\n<!-- START ROW --><\/p>\n<div class=\"row\">\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\">\n<p class=\"nome-cognome-autore\">THE CHARACTERS<\/p>\n<p class=\"maggio23\">Ombretta returns to Hotel De Tenebris.&nbsp; She is already the protagonist of the successful series of workbooks for training mathematical skills in logic and problem solving: <a href=\"https:\/\/www.erickson.international\/en\/the-mathematical-mysteries-of-villa-tenebra-2\/\">The mathematical mysteries of Villa Tenebra<\/a>. Lupo will be accompanying her!<\/p>\n<\/div>\n<div class=\"col-lg-6 col-md-12 col-sm-12 col-xs-12\">\n<img src=\"https:\/\/www.erickson.international\/wp-content\/uploads\/2024\/06\/BASE_1000_Problemi_mostruosi_allHotel_De_Tenebris_6.png\" border=\"0\" class=\"img-responsive\"><\/p>\n<p class=\"maggio23\" style=\"text-align: center; font-weight: bold\">Ombretta<\/p>\n<\/div>\n<div class=\"col-lg-6 col-md-12 col-sm-12 col-xs-12\">\n<img src=\"https:\/\/www.erickson.international\/wp-content\/uploads\/2024\/06\/BASE_1000_Problemi_mostruosi_allHotel_De_Tenebris_7.png\" border=\"0\" class=\"img-responsive\"><\/p>\n<p class=\"maggio23\" style=\"text-align: center; font-weight: bold\">Lupo<\/p>\n<\/div>\n<\/div>\n<p><!-- END ROW --><br \/>\n<!-- START ROW --><\/p>\n<div class=\"row\">\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\">\n<p class=\"nome-cognome-autore\">THE VOLUMES IN THE SERIES<\/p>\n<\/div>\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\">\n<p class=\"nome-cognome-autore\">Monstrous problems at Hotel De Tenebris 1<\/p>\n<\/div>\n<div class=\"col-lg-4 col-md-6 col-sm-12 col-xs-12\">\n\t<img src=\"https:\/\/static.erickson.it\/prod\/files\/Item\/item_ac_immagine\/289990_problemi-mostruosi-all-hotel-de-tenebris-1.jpg\" border=\"0\" class=\"img-responsive\"><\/div>\n<div class=\"col-lg-8 col-md-6 col-sm-12 col-xs-12\">\n<p class=\"nome-cognome-autore\">Cleopatra&#8217;s Diadem<\/p>\n<p class=\"maggio23\">A new terrifying adventure begins at <strong>Hotel De Tenebris<\/strong>: who stole <em>Cleopatra&#8217;s diadem<\/em>?<\/p>\n<p class=\"maggio23\">Alternating a narrative part of a comic story with a part full of activities and exercises, this volume deals with the <strong>topics of the first grade teaching program<\/strong>:<\/p>\n<ul class=\"maggio23\">\n<li class=\"maggio23\">Addition and subtraction with number bonds;<\/li>\n<li class=\"maggio23\">Addition and subtraction in stories;<\/li>\n<li class=\"maggio23\">Problems and Venn diagrams;<\/li>\n<li class=\"maggio23\">Number bonds of 10;<\/li>\n<li class=\"maggio23\">Join, separate, add, remove, complete, find the difference, total and a part.<\/li>\n<li class=\"maggio23\">Problems with geometric measurements;<\/li>\n<li class=\"maggio23\">Skills underlying problem solving;<\/li>\n<li class=\"maggio23\">Understanding, planning, executing and monitoring<\/li>\n<\/ul>\n<p class=\"maggio23\"><a href=\"https:\/\/www.erickson.international\/en\/catalogue\/mathematics\/mathematics\/monstrous-problems-at-hotel-de-tenebris-1\/\">Go to product sheet \u00bb<\/a><\/p>\n<\/div>\n<\/div>\n<p><!-- END ROW --><br \/>\n<!-- START ROW --><\/p>\n<div class=\"row\">\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\">\n\t\t<iframe allowfullscreen=\"\" allow=\"fullscreen\" style=\"border:none;width:100%;height:400px;\" src=\"\/\/e.issuu.com\/embed.html?backgroundColor=%23F2F3F7&amp;d=problemi-mostruosi_eng&amp;hideIssuuLogo=true&amp;hideShareButton=true&amp;u=edizionierickson\"><\/iframe><\/div>\n<\/div>\n<p><!-- END ROW --><br \/>\n<!-- START ROW --><\/p>\n<div class=\"row\">\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\">\n<p class=\"nome-cognome-autore\">Monstrous problems at Hotel De Tenebris 2<\/p>\n<\/div>\n<div class=\"col-lg-4 col-md-6 col-sm-12 col-xs-12\">\n\t<img src=\"https:\/\/static.erickson.it\/prod\/t\/50_80\/files\/Item\/item_ac_immagine\/321369_problemi-mostruosi-all-hotel-de-tenebris-2-1.jpg\" border=\"0\" class=\"img-responsive\"><\/div>\n<div class=\"col-lg-8 col-md-6 col-sm-12 col-xs-12\">\n<p class=\"nome-cognome-autore\">The phantom cloak<\/p>\n<p class=\"maggio23\">A new terrifying adventure begins at&nbsp;<strong>Hotel De Tenebris<\/strong>: who stole Momo the phantom\u2019s cloak?<\/p>\n<p class=\"maggio23\">Full of funny activities and exercises, and with a comic story, the second volume deals with the&nbsp;<strong>topics of the second-grade teaching programme<\/strong>:<\/p>\n<ul class=\"maggio23\">\n<li class=\"maggio23\">Number bonds<\/li>\n<li class=\"maggio23\">Bar models<\/li>\n<li class=\"maggio23\">Word problems involving the four operations and times tables<\/li>\n<li class=\"maggio23\">Logic and flowchart-based problems<\/li>\n<li class=\"maggio23\">Geometry problems<\/li>\n<li class=\"maggio23\">Problems using non-standard units of measurement, euros, and time measurement<\/li>\n<li class=\"maggio23\">Essential skills for problem-solving<\/li>\n<\/ul>\n<p class=\"maggio23\"><a href=\"https:\/\/www.erickson.international\/en\/catalogue\/mathematics\/mathematics\/monstrous-problems-at-hotel-de-tenebris-2\/\">Go to product sheet \u00bb<\/a><\/p>\n<\/div>\n<\/div>\n<p><!-- END ROW --><br \/>\n<!-- START ROW --><\/p>\n<div class=\"row\">\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\">\n\t\t<iframe allowfullscreen=\"\" allow=\"fullscreen\" style=\"border:none;width:100%;height:400px;\" src=\"\/\/e.issuu.com\/embed.html?backgroundColor=%23F2F3F7&amp;d=problemi_mostruosi_all_hotel_de_tenebris_2_eng&amp;hideIssuuLogo=true&amp;hideShareButton=true&amp;u=edizionierickson\"><\/iframe><\/div>\n<\/div>\n<p><!-- END ROW --><br \/>\n<!-- START ROW --><\/p>\n<div class=\"row\">\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\">\n<p class=\"nome-cognome-autore\">THE AUTHOR<\/p>\n<p class=\"maggio23\"><strong>Valeria Razzini<\/strong> primary school teacher, specialized in inclusive teaching.  She was a trainer and teacher of Communication. She obtained her second degree in Primary Education Sciences from the University of Modena and Reggio Emilia and a master&#8217;s degree in Didactics and Psycho-pedagogy for specific learning disabilities. She has published essays and books on the many aspects of mathematics education.<\/p>\n<\/div>\n<\/div>\n<p><!-- END ROW --><\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Monstrous problems at Hotel De Tenebris Valeria Razzini &nbsp; THE SERIES Monstrous Problems at Hotel De Tenebris is a&nbsp;colorful and fun series of workbooks&nbsp;designed for&nbsp;primary school.&nbsp;Children must&nbsp;solve mathematical problems of consolidation and revision&nbsp;and discover the culprit of the crime along with the two protagonists Ombretta and Lupo. What you will find in each volume: The [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/page-landing2colonne.php","meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Monstrous problems at Hotel De Tenebris - Erickson International<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.erickson.international\/en\/monstrous-problems-at-hotel-de-tenebris\/\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.erickson.international\/en\/monstrous-problems-at-hotel-de-tenebris\/\",\"url\":\"https:\/\/www.erickson.international\/en\/monstrous-problems-at-hotel-de-tenebris\/\",\"name\":\"Monstrous problems at Hotel De Tenebris - 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