This little article focuses on improving math knowledge among teachers. It's interesting/encouraging (maybe) that some people who were teachers themselves were very aware of the problem.
Many educators who commented on the editorial said they wanted better preparation for the math and science courses they teach.
“I know firsthand that underprepared teachers is a HUGE issue,” wrote Beth Z., a math teacher in Alaska. “We have a ‘math’ teacher right now who majored in HISTORY. How do you get people who major in mathematics to go into teaching?