> Math is a problem for middle school teachers because they often don't understand algebra, trigonometry, calculus or geometry well enough to teach it. The oth

> Math is a problem for middle school teachers because they often don't understand algebra, trigonometry, calculus or geometry well enough to teach it. The other problem you alluded to is that if they do understand well enough to teach it and teach it well, there’s a good chance there’s an engineering position they can get instead.