College students at Lonestar College in Houston are claiming that one of their professors spent the entire semester teaching them the wrong class. Now, it appears that the college is trying to cover up the mistake. Apparently, when students showed up to take the final exam of their “Intro To Chemistry” class, their professor told the class that she’d accidentally spent the entire semester teaching them “General Chemistry,” a much more advanced class. To make it up to them, Professor Thao Shirley Nguyen would give them extra credit to bump up their grades. KHOU11 in Texas has the dirt and now the semester-long charade is seemingly over...or maybe just beginning?