A while ago, I pointed out that the main problem with a lot of writing is incorrect usage of commas . Of course, once I said THAT, I started noticing other problems that could be THE main error plaguing English writers and speakers. During Camp Nicole , as I tried to explain algebra the best way I can (in terms of language), I found myself in the weird position of explaining that "obtuse" means "intellectually dull," but that's not really related to an angle of more than 90 degrees. My brother thought it was funny and wanted to use it as an insult, but he couldn't put it into a sentence. Then, I began to notice that they sometimes have trouble transitioning a word from one part of speech to another. They would just add "-ize" or "-tion" onto a word and assume the work was done. It left me scratching my head in confusion (and decidedly against ever attempting to teach algebra again…). Without going into an in depth morphology lesson, word...