[1] https://www.washingtonpost.com/posteverything/wp/2015/01/20/...
[2] http://www.intellectualtakeout.org/blog/why-are-so-many-fema...
In a country with 73 million children, and roughly 3.2 million full time equivalent teachers. That's pretty much the definition of a rare event.
In general, any increase in numbers should be regarded as better reporting and better recording of crime, rather than an increase in that crime.
Female teacher on male student sexual crime has only recently been taken seriously (and it's still got some way to go to reach parity in perception with male teacher on female student sexual crime), so I'd expect reporting and recording of this crime to be changing.
You've posted two links, but one refers to the other.
> In 2014, Abbott said, two-thirds of reported teacher-related sexual misconduct cases with students involved men; that means one-third of the cases involved female teachers.
Does it? Or does it mean the sex of the offender isn't always collected?
I can't seem to find his data anywhere.