according to Everytown, which admittedly is a gun control program, there have been 74 (now 75) school shootings since Newtown. I did a little more research and found that their idea of a school shooting in an umbrella term- it includes a non-affiliated person committing suicide in a school parking lot, accidental and purposeful discharges that did not harm anybody (thoug, cmon, its still a gun going off at a school), and college shootings as well. Some of them are just associated with the school- a guy stabbed 3 people on campus, fled, and shot a bystander.
I'm not gonna separate each one, but lets be conservative and say there's been 30 school shootings (campus or k-12, and our "evoked meaning" of school shooting)...thats still 15 per year. I'd say that's constantly
Any way you look at it, 75 school shootings in 2 years is quite a bit. My own personal opinion. I think one is too many, im not sure your definition of constantly. Here's a breakdown of all of te ones Everytown lists
http://www.cnn.com/2014/06/11/us/sch...gs-cnn-number/