Several answers in the guide were wrong. There were also sloppy diagrams and improper notation of exponents. There were at least 18 errors in the guide, and grammar and spelling issues proved just as problematic as the math. For example, the word "fourth" was misspelled on the cover of the 4th-grade manual.
School officials blamed the mistakes on an ineffective fact-checker.
Yeah, the fact-checker deserves to get it in the neck, but so do the people who prepared the guide in the first place. Please, is it too much to ask that they at least get the cover right?
Link via Powerline.