Saturday 3 February 2018

RT @giohio: Pythagorean Theorem Proofs Without Words https://t.co/Mak201DqcQ #mtbos #iteachmath @ohioctm @swoctm1 @geogebra https://t.co/6TBZB5jwg5 - The Calculator Guide from Twitter


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February 03, 2018 at 07:18AM
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