Manhunt: Schools try to attract more male teachers Getting more men into classrooms, Nelson said, would help show children that society as a whole places a deep value on education and would add balance to their school life.
Because God knows we don't want to teach children that things women do can be valuable, too.
There's also a whole lot of crap about how men have "different teaching styles"--the usual discounting of the vastly larger variation within the sexes than anything systematic between them.