Some good ideas exist in this article. I could see this strategy implemented in my district as one of several starting in the Fall. But it's not going to be easy.

I'm in New England. The sheer number of students and the percentage of them who have inadequate Winter clothing and food would make the strategy impossible to implement as a one size fits all approach.

A quick search shows that my school district has 10,479 students. The number of students on free or reduced price lunch is a good indicator of access to adequate Winter clothing as well. We have 44% of the students on free or reduced price lunch. To implement a strategy of windows open or outdoor classrooms, we would have to account for 4,610 students' Winter clothing needs for temperatures ranging from 0F-55F.

Some communities have much higher percentages of students on free and reduced price lunch. A quick look at a neighbor city 15 minutes' drive to the north shows 95% on free or reduced price lunch.

Districts less affected by poverty could probably implement an outdoor or windows open strategy. But a mountain of logistics exist in trying to implement in communities like mine. Unfortunately, in our county, communities like mine are the norm.