Addition with regrouping, concrete steps. #ITeachMath #MTBoS #Teach180 #ElemMathChat https://t.co/p897JAp95H http://pic.twitter.com/vQkk51u19q
— Randi Mitchael (@randimitchael) September 20, 2017
Addition with regrouping, concrete steps. #ITeachMath #MTBoS #Teach180 #ElemMathChat https://t.co/p897JAp95H http://pic.twitter.com/vQkk51u19q
— Randi Mitchael (@randimitchael) September 20, 2017
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