Most good school teachers don't have time to read sites like hacker news for even an hour a day. They're in the weeds --running after school programs, early morning programs, writing IEPs, planning upcoming lessons, and whole slew of other stuff most people don't even think about.
People in the tech field all have the luxury to stop working to check out a few articles on the internet. We even pretend like this is making us better at our job. Teachers do not have this kind of time. They are on the moment they walk in to the moment they walk out (and them some more before they go to sleep).
Good teachers are like full stack engineers. They have to worry about everything and carry all the wait. They're thrown into a 50+ year system that almost never changes. Their version of a startup is creating a new school, and that's still a derisive, hot topic (chart schools). Instead most of them work for the education equivalent of IBM.
But still, Academic Recess sounds like a good idea. I just signed up. Hit me up at gaelenh at gmail dot com if you want any help.