I think it is good for math students to have a cognitive psychology course. Foreign languages are often required. If a student knows how his mind works he would use it more efficiently. Insight, for example, occurs after a burst of gamma waves followed by alpha waves. In layman terms this means that a person stuck on a math problem usually gets an aha moment when he is relaxing. Opinions?
Edit. For example, I see many students now live-TeXing notes. That is a very inefficient way of learning.