Open Middle

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Open Middle

Open Middle

@openmiddle

Challenging math problems worth solving. Check out our online workshop (https://t.co/MptNurQvKK) and book (https://t.co/QQlU6aQIlV) by @robertkaplinsky.

Katılım Şubat 2014
7.7K Takip Edilen28.5K Takipçiler
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Robert Kaplinsky
Robert Kaplinsky@robertkaplinsky·
This is my favorite problem to do with anyone who's never tried an Open Middle problem before, whether they're a student or adult.
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Open Middle
Open Middle@openmiddle·
Hey teachers and educators! We just added 21 new problems to Open Middle, many of which are for High School. Check them out at openmiddle.com
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Open Middle
Open Middle@openmiddle·
You can now use Advanced Search on openmiddle.com to find problems faster. You can find Advanced Search by clicking the "Advanced Search" link directly under the main search box.
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Open Middle
Open Middle@openmiddle·
We are collecting feedback from teachers and educators who use Open Middle problems. Please take a few minutes to complete the form below. Your feedback will help us improve Open Middle. forms.gle/LdbgVYFoUinMfX…
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Open Middle
Open Middle@openmiddle·
Here's a matrix multiplication problem from Bryan Anderson that will help you bring out their conceptual understanding. See hints and answers on Open Middle. openmiddle.com/matrix-multipl…
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