An Iowa woman jokingly calls it "Satan's handiwork." A California mom says she's broken down in tears. A Pennsylvania parent says it "makes my blood boil." What could be so horrible? Grade-school math ...
Funding for this work wsa received from the US Department of Education, IES Grant R305A110682, and NSF CAREER Award DRL-0746970 to Sian L. Beilock, and the NSF Spatial Intelligence and Learning Center ...
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