Measuring with a "broken ruler" helps overcome a common measuring misconception https://t.co/QiI1PtFNa8 pic.twitter.com/yWDYS3rpEi
— Donna Boucher (@MathCoachCorner) August 14, 2018
from Twitter https://twitter.com/MathCoachCorner
August 14, 2018 at 05:30PM
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