The CDC has revised a few opinions/recommendations recently, including the recommended quarantine times and procedures. Taking a STRONG position then changing that position based on new evidence is the nature of science. In fact, scientific opinion is never static, it's the unbiased willingness to change the position when the evidence points to a different conclusion that makes science so trusted...and confusing. The problem is that the size of the COVID laboratory (global) is so large and fluid the data and observations used to form opinion feels so arbitrary and/or political. *I don't know what has driven the recent changes and am not implying a reason, just that they have been in the new this weeK.
Regarding the 3ft vs 6 ft, the CDC (using the WHO's recommendation as its basis) has ALWAYS held that 3 ft was all that was necessary but chose to tell everyone 6ft because it provide so much more margin of error. Basically it was like the old joke ...well never mind. What they figured was if they want 3ft, tell them 6ft and chances are you'll get at least 3ft most of the time. At one point they also included references to time of exposure in their 3ft recommendation, it was something like "no more than 10 minutes within a 3ft distance of anyone...". Again, counting time and distance was not something they figured people could be counted on doing so the message was a simplified 6ft, which then became a 6ft and wear a mask. The WHO standard is still that it is acceptable to place hospital beds 1 meter apart, perhaps that is how that school district came to the 3ft distance. My rule would be to place them at least as far apart as the the mask elastic will carry the mask when full stretched and released.
One thing I have seen mentioned more and more in the reopening plans of local schools and some other industries is ventilation. There has been very little said about the need for or benefits of high flow ventilation but it goes to what the CDC (or WHO?) said in their initial opinion about distance and time of exposure. Few restaurants have been given an opportunity to remain open but some have used the downtime and extra PPP funding to install high flow-high efficiency ventilation systems that may become the new standard just like earthquake retrofits did in old buildings. an obvious down side is that changing a filter becomes a job for hazmat ...and just like that, a new agency is born.
I absolutely understand the need to put butts in seats, i see the academic need, I see the emotional need, i see the social need and I see the economic need. I can even make a very sound argument that our communities would be able to have better control over COVID if kids were ON campus each and every day...if we took some basic safety measures, coordinated well with local public health efforts and had proper/efficient testing protocols. BUT, to be successful the schools and communities have to be on the same page, schools have to be trained and prepared AND have the resources. Think about it, what better way to monitor the health of a community than to have eyes on its kids EVERY day. Keeping the kids home and teaching remotely is like keeping an infected wound wrapped tight for weeks, you know it's festering but you can't see how bad it is until its too late. If you exposure the wound everyday you can see where the problems are and address them. ...now who wants danger pay to teach this year?
At one point, about 12-13 years ago I was heavily involved with the school board (my career in politics), and my mom was the district nurse from the time i graduated high school until she died about 6 years ago. I have a pretty deep understanding of MY school district, which is why my older kids never attended it and my younger daughter attended only briefly, My daughter is in virtual school and will remain there through the remainder of high school so I have no horse in THAT race. My son is a teacher in the school district so my personal concerns are from that angle more than anything else. Because I know a little more about the inside of the administration building and I've worked with teachers on a professional level, I have to say I don't have a lot of faith in their ability to "throw together" a distance learning program, nor do I think they are the right people to design and coordinate an appropriate school based approach that is like I described above. I am not entirely sure my district could design a safe in-school program that protects the adequate staff either. One thing that adds a unique twist to a lot of our schools is a number of them are parent drop of/pick up. This creates a unique opportunity each and every day for additional exposure from each and every household, at a time when things are moving quickly and already filled with added risks requiring teachers attention. ...So, so many moving parts to consider.
I was thinking that it would be cool if we somehow used the PBS channel(s) to teach/supplement everyday. Since one of the complaints is lack of internet access they could put video classes on PBS, different time slots for different grades. Kahn Academy has some incredible teaching modules available for free, they could build classes straight from Kahn academy. The teachers union would come unglued but its for the greater good.