According to st Andrew’s College, Canada (www.sac.on.ca) not only are students less inhibited and more focused in the classroom in a single-gender environment, but research indicates those who attend all-boys schools are more than twice as likely to study art, music, drama, and foreign languages, in addition to the traditional maths and sciences.
This is largely because of the way teachers modify their approach according to the unique needs of boys. In an all-boys setting, we are able to break down gender stereotypes and empower boys to pursue their interests without having to impress or show off. For this reason, it is not unusual for a top athlete to also play the saxophone or have a lead in the School play.
Here is some interesting reading in education and psychology for boys:
The War Against Boys by Christina Hoff Sommers, B.A., Ph.D.
The Wonder of Boys by Michael Gurian
Boys Adrift by Leonard Sax, M.D. and Ph.D.
Raising Cain by Dan Kindlon, Ph.D. and Michael Thompson, Ph.D.
Real Boys by William Pollack, Ph.D.
Catholic boarding schools 