It’s obvious and evident that male teachers are different from female teachers. I’ve worked in a single-sex school, with boys.
However in a school where there are both men and women, and so the students have teachers of both genders, the thing can be complementary and so good as well.
Anyway, on top of that I prefer single-sex schools; it is one more option, and it was ok with me and with the students. / Photo from: class www theprospect net