Mark H. Ashcraft, a professor at the University of Nevada, Las Vegas, who researches math anxiety, explained how easily it can be perpetuated at the family homework table:“If parents never understood the math they were taught very well, and then have to figure out a different method their child is learning,” he said, “it’s very math-anxiety provoking for them.”
Only use of citation throughout the article. Not really sure what exact documentation system is used, I don't think there really is one. Just having one citation shows that this article is most likely based off of emotional appeal rather than logical appeal.