Day 13: Closing out our day on + / - rational #s with this problem #teach180 #iteachmath #math7 http://pic.twitter.com/GtmEA4YCD3
— Richard Hung (@rnhung) August 31, 2017
Day 13: Closing out our day on + / - rational #s with this problem #teach180 #iteachmath #math7 http://pic.twitter.com/GtmEA4YCD3
— Richard Hung (@rnhung) August 31, 2017
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