Yes, Houghton Mifflin's "Saxon" math textbook promoters spelled "derives"..."derrives." That's three typos/errors==> http://www.hmheducation.com/saxonmath/common-core.php …
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Replying to @michellemalkin
@michellemalkin Very unfortunate errors. Thank you for bringing this to our attention. We are correcting these right now.14 replies 3 retweets 5 likes -
Replying to @HMHCo
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@HMHCo Thank you. Glad you are correcting those glaring errors. I've got tons more for you to correct. Stay tuned.#commoncore3 replies 11 retweets 6 likes
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