There is work being done in that area, but it's not as stark as you suggest. From StatsCan:

756,900 — The number of teachers and professors in Canada as of June 2014. Of these, 32% were men and 68% were women
84% — The proportion of women among all elementary school and kindergarten teachers in Canada in 2011.
59% — The proportion of women among all secondary school teachers in Canada in 2011.
http://www.statcan.gc.ca/eng/dai/smr08/2014/smr08_190_2014#a4

And you'll notice that the gender gap changes as you get to higher levels of schooling, Statcans numbers in 2010 were like this: "as of 2010, the number of women full professors was barely 30 per cent in the humanities and social sciences, and worse yet, only 17 per cent in science, technology, engineering and math (STEM) as well as medical fields, according to Statistics Canada in 2010."