Ss used integer chips to build understanding of adding integers and to #nixthetricks #mtbos #teach180 http://pic.twitter.com/q1424NHLVG
— Megan Lonsdale (@math7MS) August 14, 2017
Ss used integer chips to build understanding of adding integers and to #nixthetricks #mtbos #teach180 http://pic.twitter.com/q1424NHLVG
— Megan Lonsdale (@math7MS) August 14, 2017
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