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Daily Archives: July 28, 2014

Open Number Lines Explained

Computation, Teaching MathBy Hannah BraunJuly 28, 20143 Comments

If Not the Algorithm, Then What? The summer before my school was implementing Common Core math standards, we all attended a 3-day training.  In 2nd grade we tackle “regrouping” (or borrowing and carrying) in addition and subtraction.  It’s a big deal for us, it’s our thing, and we’re proud to teach this critical skill. I…

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