Day 9: Ss model subtracting integers on a number line. #teach180 #msmathchat http://pic.twitter.com/1WtxNsgKfb
— Cynthia Flim (@CGFlim) September 12, 2017
Day 9: Ss model subtracting integers on a number line. #teach180 #msmathchat http://pic.twitter.com/1WtxNsgKfb
— Cynthia Flim (@CGFlim) September 12, 2017
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