We've all heard and been taught "Please Excuse My Dear Aunt Sally" when it comes to learning order of operations. And while that may work in elementary school, it starts to get a little more difficult in Algebra and beyond when students remember the saying but not the logic behind the steps.
Sarah Carter (was Hagan but she got married) does an amazing job with posters and explaining concepts. So I loved her explanation here of using GEMDAS so I am utilizing this in my classroom. The walls have GEMDAS just as her blog shows and we completed a page in our INB where we discussed the logic and reasoning behind the steps!
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