[goblinfoblin]

I had a differing high school experience where I had more male teachers than female and all of those male teachers were over 40 save 1 new teacher. It was a public school but perhaps some other bias caused this at the school.

Surprisingly I had 2 science teachers and 1 math teacher that were Engineers in previous careers but decided to move into teaching (far before retirement age).

Maybe with programs like http://www.teachforamerica.org/ we'll start seeing more professionals change careers into teaching.

Anecdote: I had a family friend move into teaching from engineering but he found it hard to find a job not teaching in the ghetto or for schools catering to troubled teens and after a few years moved back into engineering.