Actually, many high school math teachers in the US did not major in math, minor in math, or receive any teaching certification in math. In high school it's not

Actually, many high school math teachers in the US did not major in math, minor in math, or receive any teaching certification in math. In high school it's not so bad -- only 28% of high school math didn't major in math, and only 12% of our total math teachers in high school have no qualifications whatsoever. [1] In middle school 55% of math teachers didn't major in math, and about 30% didn't major, minor, or get a certificate in math! [2] So -- you're right. [1] https://nces.ed.gov/fastfacts/display.asp?id=58 https://nces.ed.gov/fastfacts/display.asp?id=58 [2] http://nces.ed.gov/pubs2015/2015815.pdf http://nces.ed.gov/pubs2015/2015815.pdf