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# Addition & Subtraction 2 x 2 digit problem solving

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PDF (Acrobat) Document File

1 MB|10 pages
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Product Description
You want to have your kids practice addition and subtraction problems, with and without re-grouping, but you’re sick of the contrived “word problems” in your textbook, or find the usual activites like “Scoot” dull and repetitive. So here’s something new: addition and subtraction puzzles that are creative, open-ended and, dare I say it, “challenging!”

“One, Some or None?” is a game I learned from my graduate school professor, David Fuys, who learned it from another teacher, who invented it to get her students to think about attributes of geometric shapes. I knew a good thing when I saw it, so I wrote an article about it for a mathematics education journal, where it died a lonely death.

The premise of this activity is that students are given three clues about a problem and then have to figure out whether there is a single solution to that problem (“one”), more than one solution to that problem (“some”) or the problem can not be solved using that combination of clues and digits.

There are 27 different challenges, as well as recording sheets, and sample problems for you to try out with your class.

Total Pages
10 pages
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Teaching Duration
40 minutes
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\$2.95
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