Did you know that some schools are using artificial intelligence to grade student essays? An article in Vox reports that schools across the country are using algorithms to grade essays by making predictions about how a teacher would grade them. Experts say, however, that the technology can get those predictions wrong and it's possible a particular data set could be biased about certain speech and language patterns. One of the other flaws that is noted is that the grading system rewards those who use big words, yet easily be fooled by nonsensical gibberish of sophisticated words strung together.