{"id":1798,"date":"2026-08-31T16:11:28","date_gmt":"2026-08-31T21:11:28","guid":{"rendered":"https:\/\/teacheraccommodated.ca\/?p=1798"},"modified":"2026-08-31T16:11:32","modified_gmt":"2026-08-31T21:11:32","slug":"trachtenberg-system-no-multiplication","status":"publish","type":"post","link":"https:\/\/teacheraccommodated.ca\/?p=1798","title":{"rendered":"Trachtenberg system (No multiplication!)"},"content":{"rendered":"\n
\"\"<\/a><\/figure>\n\n\n\n

This interesting and FUN math activity comes with a story and can help struggling learners see that math can be EASY!<\/p>\n\n\n\n

\u2764\ufe0fNo multiplication tables!<\/p>\n\n\n\n

I like to set up this activity as a challenge, tell the story, and then show them how smart they can be and dangle the opportunity to show their parents what they learned.<\/p>\n\n\n\n

Often, some students will use the calculator to test if the answer is right, and the students will add with me on the Board and can do it faster.<\/p>\n\n\n\n

This is great to reinforce learning skills.<\/p>\n\n\n\n

First, these patterns were discovered while he was in a Nazi concentration camp<\/strong> without access to pen\/paper to impress the students. You don’t need a lot of background to be able to appreciate how hard it would have been to figure it all out while you were working.<\/p>\n\n\n\n

Second, I chose the 11 pattern as it is easy and students may already know the doubles to encourage them to pay attention.<\/p>\n\n\n\n

I demonstrate on the board, and this slideshow has the step-by-step method to be able to present, or the PDF can be used to show on screen.<\/p>\n\n\n\n

NOTE: This is great for an on-call<\/strong>, especially if math is not your thing!<\/p>\n\n\n\n

There is a worksheet ready to be printed included.<\/p>\n\n\n\n

No prep and emergency lesson checked off your to-do list!<\/p>\n\n\n\n

I used to have this printed as an emergency lesson in my classroom.<\/p>\n","protected":false},"excerpt":{"rendered":"

This interesting and FUN math activity comes with a story and can help struggling learners see that math<\/p>\n","protected":false},"author":2,"featured_media":1799,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-1798","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"featured_image_urls":{"full":["https:\/\/teacheraccommodated.ca\/wp-content\/uploads\/2026\/08\/Tratchberg-system-cover.png",958,954,false],"thumbnail":["https:\/\/teacheraccommodated.ca\/wp-content\/uploads\/2026\/08\/Tratchberg-system-cover-150x150.png",150,150,true],"medium":["https:\/\/teacheraccommodated.ca\/wp-content\/uploads\/2026\/08\/Tratchberg-system-cover-300x299.png",300,299,true],"medium_large":["https:\/\/teacheraccommodated.ca\/wp-content\/uploads\/2026\/08\/Tratchberg-system-cover-767x764.png",640,637,true],"large":["https:\/\/teacheraccommodated.ca\/wp-content\/uploads\/2026\/08\/Tratchberg-system-cover.png",640,637,false],"1536x1536":["https:\/\/teacheraccommodated.ca\/wp-content\/uploads\/2026\/08\/Tratchberg-system-cover.png",958,954,false],"2048x2048":["https:\/\/teacheraccommodated.ca\/wp-content\/uploads\/2026\/08\/Tratchberg-system-cover.png",958,954,false],"morenews-large":["https:\/\/teacheraccommodated.ca\/wp-content\/uploads\/2026\/08\/Tratchberg-system-cover-825x575.png",825,575,true],"morenews-medium":["https:\/\/teacheraccommodated.ca\/wp-content\/uploads\/2026\/08\/Tratchberg-system-cover-590x410.png",590,410,true]},"author_info":{"display_name":"Ginger Major","author_link":"https:\/\/teacheraccommodated.ca\/?author=2"},"category_info":"Uncategorized<\/a>","tag_info":"Uncategorized","comment_count":"0","_links":{"self":[{"href":"https:\/\/teacheraccommodated.ca\/index.php?rest_route=\/wp\/v2\/posts\/1798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/teacheraccommodated.ca\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/teacheraccommodated.ca\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/teacheraccommodated.ca\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/teacheraccommodated.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1798"}],"version-history":[{"count":1,"href":"https:\/\/teacheraccommodated.ca\/index.php?rest_route=\/wp\/v2\/posts\/1798\/revisions"}],"predecessor-version":[{"id":1800,"href":"https:\/\/teacheraccommodated.ca\/index.php?rest_route=\/wp\/v2\/posts\/1798\/revisions\/1800"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/teacheraccommodated.ca\/index.php?rest_route=\/wp\/v2\/media\/1799"}],"wp:attachment":[{"href":"https:\/\/teacheraccommodated.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/teacheraccommodated.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/teacheraccommodated.ca\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}